CLEANUP: tree-wide: remove a few rare non-ASCII chars

As reported by Tim in issue #1428, our sources are clean, there are
just a few files with a few rare non-ASCII chars for the paragraph
symbol, a few typos, or in Fred's name. Given that Fred already uses
the non-accentuated form at other places like on the public list,
let's uniformize all this and make sure the code displays equally
everywhere.
diff --git a/include/haproxy/cbuf-t.h b/include/haproxy/cbuf-t.h
index 8f917bb..27d3bf1 100644
--- a/include/haproxy/cbuf-t.h
+++ b/include/haproxy/cbuf-t.h
@@ -2,7 +2,7 @@
  * include/haprox/cbuf-t.h
  * This file contains definition for circular buffers.
  *
- * Copyright 2021 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2021 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/cbuf.h b/include/haproxy/cbuf.h
index f3d8839..b217a5c 100644
--- a/include/haproxy/cbuf.h
+++ b/include/haproxy/cbuf.h
@@ -3,7 +3,7 @@
  * This file contains definitions and prototypes for circular buffers.
  * Inspired from Linux circular buffers (include/linux/circ_buf.h).
  *
- * Copyright 2021 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2021 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/dict-t.h b/include/haproxy/dict-t.h
index b8124e3..deaa88d 100644
--- a/include/haproxy/dict-t.h
+++ b/include/haproxy/dict-t.h
@@ -2,7 +2,7 @@
  * include/haproxy/dict-t.h
  * Dictionaries - types definitions
  *
- * Copyright 2019 Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 Frederic Lecaille <flecaille@haproxy.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
diff --git a/include/haproxy/dict.h b/include/haproxy/dict.h
index c55834c..635c3f1 100644
--- a/include/haproxy/dict.h
+++ b/include/haproxy/dict.h
@@ -2,7 +2,7 @@
  * include/haproxy/dict.h
  * Dictionaries - functions prototypes
  *
- * Copyright 2019 Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 Frederic Lecaille <flecaille@haproxy.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
diff --git a/include/haproxy/proto_quic.h b/include/haproxy/proto_quic.h
index d015886..8677cbf 100644
--- a/include/haproxy/proto_quic.h
+++ b/include/haproxy/proto_quic.h
@@ -1,7 +1,7 @@
 /*
  * AF_INET/AF_INET6 QUIC protocol layer definitions.
  *
- * Copyright 2020 Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2020 Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/proto_udp.h b/include/haproxy/proto_udp.h
index 6b4f365..1c4da77 100644
--- a/include/haproxy/proto_udp.h
+++ b/include/haproxy/proto_udp.h
@@ -2,7 +2,7 @@
  * include/haproxy/proto_udp.h
  * This file contains UDP socket protocol definitions.
  *
- * Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * Partial merge by Emeric Brun <ebrun@haproxy.com>
  *
diff --git a/include/haproxy/qpack-dec.h b/include/haproxy/qpack-dec.h
index d020ced..7dcfe1d 100644
--- a/include/haproxy/qpack-dec.h
+++ b/include/haproxy/qpack-dec.h
@@ -1,7 +1,7 @@
 /*
  * QPACK decompressor
  *
- * Copyright 2021 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2021 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/qpack-t.h b/include/haproxy/qpack-t.h
index 1200eef..0e1736a 100644
--- a/include/haproxy/qpack-t.h
+++ b/include/haproxy/qpack-t.h
@@ -2,7 +2,7 @@
  * include/haproxy/qpack-t.h
  * This file contains types for QPACK
  *
- * Copyright 2021 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2021 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/qpack-tbl-t.h b/include/haproxy/qpack-tbl-t.h
index 88f996e..c27c623 100644
--- a/include/haproxy/qpack-tbl-t.h
+++ b/include/haproxy/qpack-tbl-t.h
@@ -1,7 +1,7 @@
 /*
  * QPACK header table management (draft-ietf-quic-qpack-20) - type definitions
  *
- * Copyright 2020 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2020 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
diff --git a/include/haproxy/qpack-tbl.h b/include/haproxy/qpack-tbl.h
index 53ab889..05f3ab4 100644
--- a/include/haproxy/qpack-tbl.h
+++ b/include/haproxy/qpack-tbl.h
@@ -1,7 +1,7 @@
 /*
  * QPACK header table management - prototypes
  *
- * Copyright 2021 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2021 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
diff --git a/include/haproxy/quic_cc-t.h b/include/haproxy/quic_cc-t.h
index 5089d66..1efea04 100644
--- a/include/haproxy/quic_cc-t.h
+++ b/include/haproxy/quic_cc-t.h
@@ -2,7 +2,7 @@
  * include/haproxy/quic_cc-t.h
  * This file contains definitions for QUIC congestion control.
  *
- * Copyright 2020 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2020 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/quic_cc.h b/include/haproxy/quic_cc.h
index d250af9..dbf0284 100644
--- a/include/haproxy/quic_cc.h
+++ b/include/haproxy/quic_cc.h
@@ -2,7 +2,7 @@
  * include/proto/quic_cc.h
  * This file contains prototypes for QUIC congestion control.
  *
- * Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/quic_enc.h b/include/haproxy/quic_enc.h
index 9a18824..fad6964 100644
--- a/include/haproxy/quic_enc.h
+++ b/include/haproxy/quic_enc.h
@@ -2,7 +2,7 @@
  * include/haproxy/quic_enc.h
  * This file contains QUIC varint encoding function prototypes
  *
- * Copyright 2021 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2021 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/quic_frame-t.h b/include/haproxy/quic_frame-t.h
index 057ad15..76957de 100644
--- a/include/haproxy/quic_frame-t.h
+++ b/include/haproxy/quic_frame-t.h
@@ -2,7 +2,7 @@
  * include/types/quic_frame.h
  * This file contains QUIC frame definitions.
  *
- * Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/quic_frame.h b/include/haproxy/quic_frame.h
index 1598e6b..4a79e86 100644
--- a/include/haproxy/quic_frame.h
+++ b/include/haproxy/quic_frame.h
@@ -2,7 +2,7 @@
  * include/haproxy/quic_frame.h
  * This file contains prototypes for QUIC frames.
  *
- * Copyright 2020 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2020 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/quic_loss-t.h b/include/haproxy/quic_loss-t.h
index 9230eec..ff32ba2 100644
--- a/include/haproxy/quic_loss-t.h
+++ b/include/haproxy/quic_loss-t.h
@@ -2,7 +2,7 @@
  * include/types/quic_loss.h
  * This file contains definitions for QUIC loss detection.
  *
- * Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/quic_loss.h b/include/haproxy/quic_loss.h
index ac65a98..6e4aebb 100644
--- a/include/haproxy/quic_loss.h
+++ b/include/haproxy/quic_loss.h
@@ -2,7 +2,7 @@
  * include/proto/quic_loss.h
  * This file provides interface definition for QUIC loss detection.
  *
- * Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/quic_sock.h b/include/haproxy/quic_sock.h
index 6976283..055818d 100644
--- a/include/haproxy/quic_sock.h
+++ b/include/haproxy/quic_sock.h
@@ -2,7 +2,7 @@
  * include/haproxy/quic_sock.h
  * This file contains declarations for QUIC sockets.
  *
- * Copyright 2020 Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2020 Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/quic_tls-t.h b/include/haproxy/quic_tls-t.h
index cacb0cd..7dab78d 100644
--- a/include/haproxy/quic_tls-t.h
+++ b/include/haproxy/quic_tls-t.h
@@ -2,7 +2,7 @@
  * include/types/quic_tls.h
  * This file provides definitions for QUIC-TLS.
  *
- * Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
diff --git a/include/haproxy/quic_tls.h b/include/haproxy/quic_tls.h
index 6900009..b4a6675 100644
--- a/include/haproxy/quic_tls.h
+++ b/include/haproxy/quic_tls.h
@@ -2,7 +2,7 @@
  * include/proto/quic_tls.h
  * This file provides definitions for QUIC-TLS.
  *
- * Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
diff --git a/include/haproxy/xprt_quic-t.h b/include/haproxy/xprt_quic-t.h
index ef40851..277143d 100644
--- a/include/haproxy/xprt_quic-t.h
+++ b/include/haproxy/xprt_quic-t.h
@@ -2,7 +2,7 @@
  * include/haproxy/xprt_quic-t.h
  * This file contains applet function prototypes
  *
- * Copyright 2019 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2019 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/include/haproxy/xprt_quic.h b/include/haproxy/xprt_quic.h
index e27f299..8d2119c 100644
--- a/include/haproxy/xprt_quic.h
+++ b/include/haproxy/xprt_quic.h
@@ -2,7 +2,7 @@
  * include/haproxy/xprt_quic.h
  * This file contains QUIC xprt function prototypes
  *
- * Copyright 2020 HAProxy Technologies, Frédéric Lécaille <flecaille@haproxy.com>
+ * Copyright 2020 HAProxy Technologies, Frederic Lecaille <flecaille@haproxy.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -966,7 +966,7 @@
 /* Discard <pktns> packet number space attached to <qc> QUIC connection.
  * Its loss information are reset. Deduce the outstanding bytes for this
  * packet number space from the outstanding bytes for the path of this
- * connection§.
+ * connection.
  * Note that all the non acknowledged TX packets and their frames are freed.
  * Always succeeds. 
  */
diff --git a/include/import/ist.h b/include/import/ist.h
index 539a27d..978fb3c 100644
--- a/include/import/ist.h
+++ b/include/import/ist.h
@@ -863,7 +863,7 @@
 static inline struct ist istalloc(const size_t size)
 {
 	/* Note: do not use ist2 here, as it triggers a gcc11 warning.
-	 * ‘<unknown>’ may be used uninitialized [-Werror=maybe-uninitialized]
+	 * €˜<unknown>€™ may be used uninitialized [-Werror=maybe-uninitialized]
 	 *
 	 * This warning is reported because the uninitialized memory block
 	 * allocated by malloc should not be passed to a const argument as in