Get rid of dup error messages for invalid getopt() options.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/opts.c b/src/opts.c
index 72f5ce0..58a13c2 100644
--- a/src/opts.c
+++ b/src/opts.c
@@ -29,6 +29,9 @@ void parse_opts(int argc, char * const *argv) {
 	int opt;
 	char **ig;
 
+	/* don't let getopt() print error message for us. */
+	opterr = 0;
+
 	while((opt = getopt(argc, argv, OPTIONS)) != -1) {
 		switch(opt) {
 			case 'a': opts.txtconv++; break;
@@ -45,7 +48,7 @@ void parse_opts(int argc, char * const *argv) {
 			case 'd': opts.outdir = optarg; break;
 			case 'x': add_exclude(optarg); break;
 			default:
-				fprintf(stderr, "%s: fatal: invalid option (try -h or --help)\n", self);
+				fprintf(stderr, "%s: fatal: invalid option '-%c' (try -h or --help)\n", self, optopt);
 				exit(1);
 		}
 	}