From b42997b6c9c140c0ee1b93c4bbbc0fee38d21238 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benedikt=20B=C3=B6hm?= <bb@xnull.de>
Date: Tue, 12 Apr 2016 21:02:28 +0200
Subject: [PATCH] fix parsing of negative PIDs

Signed-off-by: Craig Small <csmall@enc.com.au>
---
 skill.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/skill.c b/skill.c
index f8f4e499..91475275 100644
--- a/skill.c
+++ b/skill.c
@@ -479,7 +479,7 @@ static void __attribute__ ((__noreturn__))
 			} else {
 			    /* Special case for signal digit negative
 			     * PIDs */
-			    pid = (long)('0' - optopt);
+			    pid = atoi(argv[optind]);
 			    if (kill((pid_t)pid, signo) != 0)
 				exitvalue = EXIT_FAILURE;
 			    exit(exitvalue);