convert.py: Improve help.

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/convert.py b/convert.py
index eecb7a6..4608c80 100755
--- a/convert.py
+++ b/convert.py
@@ -25,8 +25,7 @@ import sh
 import sys
 
 def usage(progname):
-    print("{} path/to/file.html".format(progname))
-    sys.exit(1)
+    print("Usage:\n\t{} <path/to/file.html>".format(progname))
 
 # A "[1]" in the html becomes "[[1]][6]" in text.
 # As we already uses references at the end a [6] would
@@ -241,6 +240,7 @@ def get_metadata(html_file_path):
 def main():
     if len(sys.argv) != 2:
         usage(sys.argv[0])
+        sys.exit(os.EX_USAGE)
 
     html_file_path = sys.argv[1]