--- a/py/gadict_spellcheck.py	Wed Nov 23 12:29:26 2016 +0200
+++ b/py/gadict_spellcheck.py	Wed Nov 23 12:29:45 2016 +0200
@@ -75,7 +75,7 @@
 if len(sys.argv) < 2:
     raise Exception("Please, supply path to file...")
 if len(sys.argv) > 2:
-    raise Exception("Only one argument necessary...")
+    raise Exception("Only one argument is necessary...")
 
 FINAME = sys.argv[1]
 with io.open(FINAME, mode='r', buffering=1, encoding="utf-8") as FIN: