badwords: add more contractions, fix fallouts

Also fix hits in autotools scripts (not to enforce).

Closes #19576

lib/arpa_telnet.h

@@ -79,7 +79,7 @@ static const char * const telnetoptions[]=
 #define CURL_WILL 251 /* Our side WILL use this option */
 #define CURL_WONT 252 /* Our side will not use this option */
 #define CURL_DO   253 /* DO use this option! */
-#define CURL_DONT 254 /* DON'T use this option! */
+#define CURL_DONT 254 /* DO NOT use this option! */
 #define CURL_IAC  255 /* Interpret As Command */
 
 #ifndef CURL_DISABLE_VERBOSE_STRINGS

lib/asyn-ares.c

@@ -566,7 +566,7 @@ static void async_ares_hostbyname_cb(void *user_data,
        So, now that we have a usable answer (some IPv4 addresses, some IPv6
        addresses, or "no such domain"), we start a timeout for the remaining
        pending responses. Even though it is typical that this resolved
-       request came back quickly, that needn't be the case. It might be that
+       request came back quickly, that need not be the case. It might be that
        this completing request did not get a result from the first DNS
        server or even the first round of the whole DNS server pool. So it
        could already be quite some time after we issued the DNS queries in

lib/cf-h1-proxy.c

@@ -175,7 +175,7 @@ static void h1_tunnel_go_state(struct Curl_cfilter *cf,
     curlx_dyn_reset(&ts->rcvbuf);
     curlx_dyn_reset(&ts->request_data);
     /* restore the protocol pointer */
-    data->info.httpcode = 0; /* clear it as it might've been used for the
+    data->info.httpcode = 0; /* clear it as it might have been used for the
                                 proxy */
     /* If a proxy-authorization header was used for the proxy, then we should
        make sure that it is not accidentally used for the document request

lib/cookie.c

@@ -1629,7 +1629,7 @@ void Curl_flush_cookies(struct Curl_easy *data, bool cleanup)
   Curl_share_lock(data, CURL_LOCK_DATA_COOKIE, CURL_LOCK_ACCESS_SINGLE);
   /* only save the cookie file if a transfer was started (data->state.url is
      set), as otherwise the cookies were not completely initialized and there
-     might be cookie files that weren't loaded so saving the file is the wrong
+     might be cookie files that were not loaded so saving the file is the wrong
      thing. */
   if(data->set.str[STRING_COOKIEJAR] && data->state.url) {
     /* if we have a destination file for all the cookies to get dumped to */

lib/ftp.c

@@ -1902,7 +1902,7 @@ static CURLcode ftp_state_pasv_resp(struct Curl_easy *data,
 #ifndef CURL_DISABLE_PROXY
   if(conn->bits.proxy) {
     /* This connection uses a proxy and we need to connect to the proxy again
-     * here. We do not want to rely on a former host lookup that might've
+     * here. We do not want to rely on a former host lookup that might have
      * expired now, instead we remake the lookup here and now! */
     struct ip_quadruple ipquad;
     bool is_ipv6;
@@ -1964,7 +1964,7 @@ static CURLcode ftp_state_pasv_resp(struct Curl_easy *data,
   }
 
   /*
-   * When this is used from the multi interface, this might've returned with
+   * When this is used from the multi interface, this might have returned with
    * the 'connected' set to FALSE and thus we are now awaiting a non-blocking
    * connect to connect.
    */

lib/vtls/gtls.c

@@ -691,7 +691,7 @@ CURLcode Curl_gtls_cache_session(struct Curl_cfilter *cf,
 
   /* we always unconditionally get the session id here, as even if we
      already got it from the cache and asked to use it in the connection, it
-     might've been rejected and then a new one is in use now and we need to
+     might have been rejected and then a new one is in use now and we need to
      detect that. */
 
   /* get the session ID data size */