mc: Report error via `sys.exit(message)`

diff --git a/bin/mc_type.py b/bin/mc_type.py
index 70dcc2b6a56f062086fc4bd0471aeb2cd7361a53..8292646646afc972baa3ea59dc829a15d8a30a65 100755 (executable)
--- a/bin/mc_type.py
+++ b/bin/mc_type.py
@@ -19,7 +19,8 @@ elif mc_version.startswith('GNU Midnight Commander') or \
      mc_version.startswith('The Midnight Commander'):
     mc_version = mc_version.split()[3]
 else:
-    raise ValueError('Unknown mc version')
+    sys.exit('Unknown mc version')
+
 if '.' in mc_version:
     major, minor = [int(v) for v in mc_version.split('.')[:2]]
     if major < 4: