Minor correction

diff --git a/coreutils/sha1sum.c b/coreutils/sha1sum.c
index 8056b1d..c6534b5 100644 (file)
--- a/coreutils/sha1sum.c
+++ b/coreutils/sha1sum.c
@@ -190,7 +190,7 @@ extern int authenticate(int argc, char **argv, void (*hash_ptr)(FILE *stream, un
        }
 
        if (argc == optind) {
-               argv[argc] = "-";
+               argv[argc++] = "-";
        }
 
        while (optind < argc) {