http: write GET line in one go

This can save on TCP packet if Nagle somehow fails, and work around
bugs in some broken HTTP servers.
(cherry picked from commit 1924e5e81dcdb226e67933c54a48cba7f910d4bb)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/access/http.c

@@ -1244,12 +1244,13 @@ static int Request( access_t *p_access, uint64_t i_tell )
     const char *psz_path = p_sys->url.psz_path;
     if( !psz_path || !*psz_path )
         psz_path = "/";
-    net_Write( p_access, p_sys->fd, pvs, "GET ", 4 );
     if( p_sys->b_proxy && pvs == NULL )
-        net_Printf( p_access, p_sys->fd, NULL, "http://%s:%d",
-                    p_sys->url.psz_host, p_sys->url.i_port );
-    net_Printf( p_access, p_sys->fd, pvs, "%s HTTP/1.%d\r\n",
-                psz_path, p_sys->i_version );
+        net_Printf( p_access, p_sys->fd, NULL,
+                    "GET http://%s:%d HTTP/1.%d\r\n",
+                    p_sys->url.psz_host, p_sys->url.i_port, p_sys->i_version );
+    else
+        net_Printf( p_access, p_sys->fd, pvs, "GET %s HTTP/1.%d\r\n",
+                    psz_path, p_sys->i_version );
     if( p_sys->url.i_port != (pvs ? 443 : 80) )
         net_Printf( p_access, p_sys->fd, pvs, "Host: %s:%d\r\n",
                     p_sys->url.psz_host, p_sys->url.i_port );