fix stray semicolon (which would change program flow)

Signed-off-by: Jean-Paul Saman <jpsaman@videolan.org>

modules/control/rc.c

@@ -1425,7 +1425,7 @@ static int Playlist( vlc_object_t *p_this, char const *psz_cmd,
             msg_rc( "Trying to add %s to playlist.", newval.psz_string );
             if( playlist_AddInput( p_playlist, p_item,
                      PLAYLIST_GO|PLAYLIST_APPEND, PLAYLIST_END, VLC_TRUE,
-                     VLC_FALSE ) != VLC_SUCCESS );
+                     VLC_FALSE ) != VLC_SUCCESS )
             {
                 return VLC_EGENERIC;
             }