[monitoring-plugins] Drop uptime binary call

[Bernd Arnold]

 Module: monitoring-plugins
 Branch: master
 Commit: 37f9b45266acfeb45157d3c27a65979b33c57df7
 Author: Bernd Arnold <wopfel at gmail.com>
   Date: Sun Jun 17 09:36:13 2018 +0200
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=37f9b45

Drop uptime binary call

No need to call /bin/uptime, since the string can be generated with strftime(...).

---

 plugins-scripts/check_uptime.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins-scripts/check_uptime.pl b/plugins-scripts/check_uptime.pl
index 0a13cc0..ed859ab 100755
--- a/plugins-scripts/check_uptime.pl
+++ b/plugins-scripts/check_uptime.pl
@@ -143,7 +143,7 @@ $msg .= "uptime is $uptime_seconds seconds. ";
 $msg .= "Exceeds $out_of_bounds_text threshold. "  if  $out_of_bounds_text;
 $msg .= "Running for $pretty_uptime. "  if  $opt_f;
 if ( $opt_s ) {
-	chomp( my $up_since = `uptime -s` );
+	my $up_since = strftime( "%Y-%m-%d %H:%M:%S", localtime( time - $uptime_seconds ) );
 	$msg .= "Running since $up_since. ";
 }