Updated the HOUDNI_PATH value generated by the GameDev toolset to avoid having the original HOUDINI_PATH included twice.

Before
HOUDINI_PATH = $APPDATA\SideFX\GameDevToolset\X.X\BRANCH;$HOUDINI_PATH;&
Now
HOUDINI_PATH = $APPDATA\SideFX\GameDevToolset\X.X\BRANCH;&;
the & and HOUDINI_PATH were redundant.

Author: dpernuit

toolbar/game_development_toolset.shelf

@@ -272,7 +272,7 @@ class GameDevelopmentUpdater(object):
         entry = "HOUDINI_PATH = "
         entry += quote_char + HOU_TEMP_PATH_STR + "\\"
         entry += version + "\\" + branch
-        entry += sep + "$HOUDINI_PATH" + sep + "&" + quote_char + "\n"
+        entry += sep + "&" + sep + quote_char + "\n"
 
         to_write.append(entry)