Fix "#define ... not found" error when using the default file name
Also make that error message end with a newline.
diff --git a/scripts/config.py b/scripts/config.py
index ccc3c48..b872a8f 100755
--- a/scripts/config.py
+++ b/scripts/config.py
@@ -391,8 +391,8 @@
elif args.command == 'set':
if not args.force and args.symbol not in config.settings:
sys.stderr.write("A #define for the symbol {} "
- "was not found in {}"
- .format(args.symbol, args.file))
+ "was not found in {}\n"
+ .format(args.symbol, config.filename))
return 1
config.set(args.symbol, value=args.value)
elif args.command == 'unset':