Reduce IV_OPENVPN_GUI_VERSION= to IV_GUI_VER=

Use shorter variable name to signal the same thing (see f3a2cd255a3bc73)
to save space in the buffer used by the collective IV_ info sent to server.

Signed-off-by: Gert Doering <gert@greenie.muc.de>
Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <1389296891-1487-1-git-send-email-gert@greenie.muc.de>
URL: http://article.gmane.org/gmane.network.openvpn.devel/8183
(cherry picked from commit 7efaca734b8d633441ec3d7def2a2768864dedcf)

src/openvpn/ssl.c

@@ -1825,13 +1825,13 @@ push_peer_info(struct buffer *buf, struct tls_session *session)
 	    buf_printf (&out, "IV_HWADDR=%s\n", format_hex_ex (rgi.hwaddr, 6, 0, 1, ":", &gc));
         }
 
-      /* push env vars that begin with UV_ and IV_OPENVPN_GUI_VERSION */
+      /* push env vars that begin with UV_ and IV_GUI_VER */
       for (e=es->list; e != NULL; e=e->next)
 	{
 	  if (e->string)
 	    {
 	      if (((strncmp(e->string, "UV_", 3)==0 && session->opt->push_peer_info_detail >= 2)
-		   || (strncmp(e->string,"IV_OPENVPN_GUI_VERSION=",sizeof("IV_OPENVPN_GUI_VERSION=")-1)==0))
+		   || (strncmp(e->string,"IV_GUI_VER=",sizeof("IV_GUI_VER=")-1)==0))
 		  && buf_safe(&out, strlen(e->string)+1))
 		buf_printf (&out, "%s\n", e->string);
 	    }