python core: fix function to check if location is latlong

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@59306 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/python/script/core.py

@@ -978,7 +978,7 @@ def locn_is_latlong():
     """
     s = read_command("g.region", flags='p')
     kv = parse_key_val(s, ':')
-    if kv['projection'].split(' ')[1] == '3':
+    if kv['projection'].split(' ')[0] == '3':
         return True
     else:
         return False