vidi-player.py: add missing newlines in error messages

diff --git a/vidi-player.py b/vidi-player.py
index 62ae575..9b6d144 100755 (executable)
--- a/vidi-player.py
+++ b/vidi-player.py
@@ -90,11 +90,11 @@ def main():
 
     overlapping_notes = check_overlapping_notes(midi_file)
     if overlapping_notes:
-        sys.stderr.write("Sorry, supporting only midi file with no overlapping notes")
+        sys.stderr.write("Sorry, supporting only midi file with no overlapping notes on channel 0\n")
         return 1
 
     if not os.path.isdir(sys.argv[2]):
-        sys.stderr.write("The second argument must be the path of the videofont directory")
+        sys.stderr.write("The second argument must be the path of the videofont directory\n")
         usage()
         return 1