[hackers] [farbfeld] Update usage of ff2jpg(1) and ff2ppm(1) || Laslo Hunhold

[git]

commit f04abc0e2f995e95fda64230a2bd4c289b10d6bf
Author:     Laslo Hunhold <d...@frign.de>
AuthorDate: Fri Apr 14 21:45:32 2017 +0200
Commit:     Laslo Hunhold <d...@frign.de>
CommitDate: Fri Apr 14 21:45:32 2017 +0200

    Update usage of ff2jpg(1) and ff2ppm(1)
    
    so they align with the manpages.

diff --git a/ff2jpg.c b/ff2jpg.c
index 2f57a2f..1f87fdd 100644
--- a/ff2jpg.c
+++ b/ff2jpg.c
@@ -47,7 +47,7 @@ jpeg_setup_writer(struct jpeg_compress_struct *s, struct 
jpeg_error_mgr *e,
 static void
 usage(void)
 {
-       fprintf(stderr, "usage: %s [-b #rrggbb] [-o] [-q quality]\n", argv0);
+       fprintf(stderr, "usage: %s [-b colour] [-o] [-q quality]\n", argv0);
        exit(1);
 }
 
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);
 }