MINOR: listener: move the NOLINGER option to the bind_conf

It's currently declared per-frontend, though it would make sense to
support it per-line but in no case per-listener. Let's move the option
to a bind_conf option BC_O_NOLINGER.
diff --git a/include/haproxy/listener-t.h b/include/haproxy/listener-t.h
index 33d7541..8322ef4 100644
--- a/include/haproxy/listener-t.h
+++ b/include/haproxy/listener-t.h
@@ -92,7 +92,7 @@
 
 /* listener socket options */
 #define LI_O_NONE               0x0000
-#define LI_O_NOLINGER           0x0001  /* disable linger on this socket */
+/* unused                       0x0001  */
 /* unused                       0x0002  */
 #define LI_O_NOQUICKACK         0x0004  /* disable quick ack of immediate data (linux) */
 #define LI_O_DEF_ACCEPT         0x0008  /* wait up to 1 second for data before accepting */
@@ -121,6 +121,7 @@
 #define BC_O_USE_SOCK_STREAM    0x00000010 /* at least one stream-type listener is used */
 #define BC_O_USE_XPRT_DGRAM     0x00000020 /* at least one dgram-only xprt listener is used */
 #define BC_O_USE_XPRT_STREAM    0x00000040 /* at least one stream-only xprt listener is used */
+#define BC_O_NOLINGER           0x00000080 /* disable lingering on these listeners */
 
 
 /* flags used with bind_conf->ssl_options */
diff --git a/src/cfgparse.c b/src/cfgparse.c
index 666d5c3..6b0a1e5 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -4288,6 +4288,8 @@
 			if (!bind_conf->maxaccept)
 				bind_conf->maxaccept = global.tune.maxaccept ? global.tune.maxaccept : MAX_ACCEPT;
 			bind_conf->accept = session_accept_fd;
+			if (curproxy->options & PR_O_TCP_NOLING)
+				bind_conf->options |= BC_O_NOLINGER;
 		}
 
 		/* adjust this proxy's listeners */
@@ -4310,9 +4312,6 @@
 					memprintf(&listener->name, "sock-%d", listener->luid);
 			}
 
-			if (curproxy->options & PR_O_TCP_NOLING)
-				listener->options |= LI_O_NOLINGER;
-
 #ifdef USE_QUIC
 			if (listener->flags & LI_F_QUIC_LISTENER) {
 				if (!global.cluster_secret) {
diff --git a/src/proto_tcp.c b/src/proto_tcp.c
index dca1f8d..30135cc 100644
--- a/src/proto_tcp.c
+++ b/src/proto_tcp.c
@@ -605,7 +605,7 @@
 
 	fd = listener->rx.fd;
 
-	if (listener->options & LI_O_NOLINGER)
+	if (listener->bind_conf->options & BC_O_NOLINGER)
 		setsockopt(fd, SOL_SOCKET, SO_LINGER, &nolinger, sizeof(struct linger));
 	else {
 		struct linger tmplinger;