Fix psz_userdir memleak

(patch contributed by Brian Robb)

THANKS

@@ -21,7 +21,7 @@ Benjamin Mironer <bmironer at noos.fr> - Mac OS X fixes
 Benoit Steiner <benny at via.ecp.fr> - MPEG system input, network input
 Bill Eldridge <bill at rfa.org> - documentation
 Bob Maguire <maguirer at rjmaguire dot com> - addition of some controls to the OSX interface
-Brian Robb <vascy at hotmail dot com> - win32 CD/DVD drive detection in wx
+Brian Robb <vascy at hotmail dot com> - win32 CD/DVD drive detection in wx, bug fixes
 Brieuc Jeunhomme <bbp at via.ecp.fr> - bug fixes
 Bruno Vella <allevb at tin.it> - Italian localization
 Carlo Calabr <murray at via.ecp.fr> - Italian localization

src/libvlc.c

@@ -988,6 +988,12 @@ int VLC_Destroy( int i_object )
         p_vlc->psz_homedir = NULL;
     }
 
+    if( p_vlc->psz_userdir )
+    {
+        free( p_vlc->psz_userdir );
+        p_vlc->psz_userdir = NULL;
+    }
+
     if( p_vlc->psz_configfile )
     {
         free( p_vlc->psz_configfile );