improve --help for --context-lines

1 files changed, 2 insertions, 1 deletions

diff --git a/git-deps b/git-deps
index 5e53bc9..504a0b1 100755
--- a/git-deps
+++ b/git-deps
@@ -308,7 +308,8 @@ def parse_args():
     parser.add_argument('--log', '-l', dest='log', action='store_true',
                         help='Show commit logs for calculated dependencies')
     parser.add_argument('--context-lines', '-c', dest='context_lines', type=int,
-                        default=1, help='Number of lines of diff context to use')
+                        metavar='NUM', default=1,
+                        help='Number of lines of diff context to use')
     parser.add_argument('--debug', '-d', dest='debug', action='store_true',
                         help='Show debugging')