merge(third_party/git): Merge squashed git subtree at v2.23.0

Merge commit '1b593e1ea4' as 'third_party/git'

third_party/git/t/t4034/perl/pre

@@ -0,0 +1,22 @@
+#!/usr/bin/perl
+
+use strict;
+
+package Frotz;
+sub new {
+	my $class = shift;
+	return bless {}, $class;
+}
+
+__END__
+=head1 NAME
+
+frotz - Frotz
+
+=head1 SYNOPSIS
+
+  use frotz;
+
+  $nitfol = new Frotz();
+
+=cut