grass.py: fix inconsistent use of tabs and spaces in indentation (spaces to be used)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@73735 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/init/grass.py

@@ -2252,8 +2252,8 @@ def main():
         if not params.tmp_location:
             writefile(gisrcrc, readfile(gisrc))
         # After this point no more grass modules may be called
-	# done message at last: no atexit.register()
-	# or register done_message() 
+        # done message at last: no atexit.register()
+        # or register done_message() 
         done_message()
 
 if __name__ == '__main__':