Update usage of ff2jpg(1) and ff2ppm(1)

so they align with the manpages.

1 files changed, 1 insertions, 1 deletions

diff --git a/ff2ppm.c b/ff2ppm.c
index 746425b..4383dc4 100644
--- a/ff2ppm.c
+++ b/ff2ppm.c
@@ -14,7 +14,7 @@
 static void
 usage(void)
 {
-	fprintf(stderr, "usage: %s [-b #rrggbb]\n", argv0);
+	fprintf(stderr, "usage: %s [-b colour]\n", argv0);
 	exit(1);
 }