allow HTTP_HOST to be '0' via defined() checks

[public-inbox.git] / lib / PublicInbox / Git.pm

diff --git a/lib/PublicInbox/Git.pm b/lib/PublicInbox/Git.pm
index 8d587469f3eb5828ca6dbb4756f54a66db1cc1b7..2aaf1866b5965169e4abcec87f1fdaed9b6fb47c 100644 (file)
--- a/lib/PublicInbox/Git.pm
+++ b/lib/PublicInbox/Git.pm
@@ -10,7 +10,7 @@ package PublicInbox::Git;
 use strict;
 use warnings;
 use POSIX qw(dup2);
-require IO::Handle;
+use IO::Handle; # ->autoflush
 use PublicInbox::Spawn qw(spawn popen_rd);
 use PublicInbox::Tmpfile;
 use base qw(Exporter);
@@ -300,7 +300,7 @@ sub host_prefix_url ($$) {
        my ($env, $url) = @_;
        return $url if index($url, '//') >= 0;
        my $scheme = $env->{'psgi.url_scheme'};
-       my $host_port = $env->{HTTP_HOST} ||
+       my $host_port = $env->{HTTP_HOST} //
                "$env->{SERVER_NAME}:$env->{SERVER_PORT}";
        "$scheme://$host_port". ($env->{SCRIPT_NAME} || '/') . $url;
 }