Patch for AA ebuild

--- source/qcommon/files.c      2007-02-21 17:11:24.000000000 -0500
+++ source/qcommon/files.c 2007-02-25 16:11:37.000000000 -0500
@@ -1018,7 +1018,9 @@
        // check for game override
        fs_gamedirvar = Cvar_Get ("game", "", CVAR_LATCH|CVAR_SERVERINFO);
        if (fs_gamedirvar->string[0])
-               FS_SetGamedir (fs_gamedirvar->string);
+               FS_SetGamedir (fs_gamedirvar->string);
+       else
+               FS_SetGamedir ("arena");
 }