misc: Fix typos in docs and lib

This fixes miscellaneous typos and duplicated words in the docs, lib
and test comments and a few user facing errorstrings.

Author: RainRat on Github
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Dan Fandrich <dan@coneharvesters.com>
Closes: #13019

tests/ftpserver.pl

@@ -672,7 +672,7 @@ sub protocolsetup {
 
 # Perform the disconnecgt handshake with sockfilt on the secondary connection
 # (the only connection we actively disconnect).
-# This involves waiting for the disconnect acknowledgmeent after the DISC
+# This involves waiting for the disconnect acknowledgment after the DISC
 # command, while throwing away anything else that might come in before
 # that.
 sub disc_handshake {

tests/http/test_14_auth.py

@@ -133,7 +133,7 @@ class TestAuth:
         r = curl.http_upload(urls=[url], data=f'@{fdata}', alpn_proto=proto, extra_args=[
             '--basic', '--user', f'test:{password}'
         ])
-        # Depending on protocl, we might have an error sending or
+        # Depending on protocol, we might have an error sending or
         # the server might shutdown the connection and we see the error
         # on receiving
         assert r.exit_code in [55, 56], f'{self.dump_logs()}'

tests/libtest/lib518.c

@@ -432,7 +432,7 @@ static int rlimit(int keep_open)
   }
 
   /* free the chunk of memory we were reserving so that it
-     becomes becomes available to the test */
+     becomes available to the test */
 
   free(memchunk);
 

tests/libtest/lib537.c

@@ -436,7 +436,7 @@ static int rlimit(int keep_open)
   }
 
   /* free the chunk of memory we were reserving so that it
-     becomes becomes available to the test */
+     becomes available to the test */
 
   free(memchunk);
 

tests/server/sockfilt.c

@@ -893,7 +893,7 @@ static int select_ws(int nfds, fd_set *readfds, fd_set *writefds,
 
 
 /* Perform the disconnect handshake with sockfilt
- * This involves waiting for the disconnect acknowledgmeent after the DISC
+ * This involves waiting for the disconnect acknowledgment after the DISC
  * command, while throwing away anything else that might come in before
  * that.
  */