define default GRASS_ADDON_PATH for Windows

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@46876 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/init/grass.py

@@ -277,7 +277,10 @@ def path_append(dir, var):
 def set_paths():
     addon_path = os.getenv('GRASS_ADDON_PATH')
     if not addon_path:
-        addon_path = os.path.join(os.getenv('HOME'), '.grass7', 'addons')
+        if sys.platform == 'win32':
+            addon_path = os.path.join(os.getenv('APPDATA'), 'GRASS7', 'addons')
+        else:
+            addon_path = os.path.join(os.getenv('HOME'), '.grass7', 'addons')
         os.environ['GRASS_ADDON_PATH'] = addon_path
         message(_("GRASS_ADDON_PATH undefined, using '%s'") % addon_path)