Rename url_split to ff_url_split

Since this function isn't in the public API, it should have an ff_ prefix.

Originally committed as revision 22321 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/gopher.c

@@ -89,7 +89,7 @@ static int gopher_open(URLContext *h, const char *uri, int flags)
     h->priv_data = s;
 
     /* needed in any case to build the host string */
-    url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
+    ff_url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
               path, sizeof(path), uri);
 
     if (port < 0)