CLEANUP: assorted typo fixes in the code and comments

This is fifth iteration of typo fixes
diff --git a/contrib/wireshark-dissectors/peers/packet-happp.c b/contrib/wireshark-dissectors/peers/packet-happp.c
index 980e290..33263b4 100644
--- a/contrib/wireshark-dissectors/peers/packet-happp.c
+++ b/contrib/wireshark-dissectors/peers/packet-happp.c
@@ -158,7 +158,7 @@
 };
 
 /* The types of data we can store in a stick table.
- * Same defintions as in HAProxy sources.
+ * Same definitions as in HAProxy sources.
  */
 enum {
 	STKT_DT_SERVER_ID,      /* the server ID to use with this stream if > 0 */