Print error and usage on invalid arg, instead of ignoring it

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Gaetan Nadon <memsize@videotron.ca>

1 files changed, 5 insertions, 0 deletions

diff --git a/fstobdf.c b/fstobdf.c
index 5fe4816..255d82e 100644
--- a/fstobdf.c
+++ b/fstobdf.c
@@ -109,6 +109,11 @@ main(int argc, char *argv[])
 	    printf("%s\n", PACKAGE_STRING);
 	    exit(0);
 	}
+	else {
+	    fprintf(stderr, "%s: unrecognized option '%s'\n",
+		    argv[0], argv[i]);
+	    usage(argv[0], NULL);
+	}
     }
 
     if (fontName == NULL)