nixpkgs/pkgs/tools/networking/ddclient/ddclient-line-buffer-stdout.patch

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diff -u ddclient-3.8.1/ddclient ddclient-3.8.1.patched/ddclient
--- ddclient-3.8.1/ddclient 2011-07-11 23:04:21.000000000 +0200
+++ ddclient-3.8.1.patched/ddclient 2012-11-08 11:52:31.930647236 +0100
@@ -19,6 +19,7 @@ use strict;
use Getopt::Long;
use Sys::Hostname;
use IO::Socket;
+use IO::Handle qw( );
my ($VERSION) = q$Revision: 157 $ =~ /(\d+)/;
@@ -675,7 +676,7 @@ $SIG{'TERM'} = sub { $caught_term = 1; };
$SIG{'KILL'} = sub { $caught_kill = 1; };
# don't fork() if foreground or force is on
if (opt('foreground') || opt('force')) {
- ;
+ STDOUT->autoflush(1);
} elsif (opt('daemon')) {
$SIG{'CHLD'} = 'IGNORE';
my $pid = fork;