Add usage - noice - small file browser (mirror / fork from 2f30.org)
 (HTM) git clone git://git.codemadness.org/noice
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       ---
 (DIR) commit 71ece08aad38de2e938d7f378b00ef8360922336
 (DIR) parent 013bcdee35b54fd7be928e8b57e9c659d325fff3
 (HTM) Author: sin <sin@2f30.org>
       Date:   Thu, 26 Nov 2015 16:00:26 +0000
       
       Add usage
       
       Diffstat:
         M noice.c                             |      10 ++++++++++
       
       1 file changed, 10 insertions(+), 0 deletions(-)
       ---
 (DIR) diff --git a/noice.c b/noice.c
       @@ -878,12 +878,22 @@ moretyping:
                }
        }
        
       +void
       +usage(char *argv0)
       +{
       +        fprintf(stderr, "usage: %s [dir]\n", argv0);
       +        exit(1);
       +}
       +
        int
        main(int argc, char *argv[])
        {
                char cwd[PATH_MAX], *ipath;
                char *ifilter;
        
       +        if (argc > 2)
       +                usage(argv[0]);
       +
                /* Confirm we are in a terminal */
                if (!isatty(0) || !isatty(1)) {
                        fprintf(stderr, "stdin or stdout is not a tty\n");