[hackers] [slock][PATCH] Allow usage of -- as end-of-options specifier

[Klemens Nanni]

As pointed out in #suckless, sticking to the POSIX Utility Syntax
Guidelines[0] is a good idea.

0: 
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html#tag_12_02
---
 slock.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/slock.c b/slock.c
index af5edb2..1d28e3a 100644
--- a/slock.c
+++ b/slock.c
@@ -302,6 +302,9 @@ main(int argc, char *argv[]) {
                if (!strcmp("-v", argv[1])) {
                        fputs("slock-"VERSION"\n", stderr);
                        return 0;
+               } else if (!strcmp("--", argv[1])) {
+                       --argc;
+                       ++argv;
                } else
                        die("usage: slock [-v] [cmd [arg ...]]\n");
        }
-- 
2.8.3