Add forked Maatkit tools in bin/ and their tests in t/.

t/pt-query-digest/explain_partitions.t

@@ -0,0 +1,50 @@
+#!/usr/bin/env perl
+
+BEGIN {
+   die "The PERCONA_TOOLKIT_BRANCH environment variable is not set.\n"
+      unless $ENV{PERCONA_TOOLKIT_BRANCH} && -d $ENV{PERCONA_TOOLKIT_BRANCH};
+   unshift @INC, "$ENV{PERCONA_TOOLKIT_BRANCH}/lib";
+};
+
+use strict;
+use warnings FATAL => 'all';
+use English qw(-no_match_vars);
+use Test::More;
+
+use MaatkitTest;
+use DSNParser;
+use VersionParser;
+use Sandbox;
+
+my $dp = new DSNParser(opts=>$dsn_opts);
+my $vp = new VersionParser();
+my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
+my $dbh = $sb->get_dbh_for('master');
+
+if ( !$dbh ) {
+   plan skip_all => 'Cannot connect to sandbox master';
+}
+elsif ( !$vp->version_ge($dbh, '5.1.0') ) {
+   plan skip_all => 'Sandbox master version not >= 5.1';
+}
+else {
+   plan tests => 1;
+}
+
+# #############################################################################
+# Issue 611: EXPLAIN PARTITIONS in mk-query-digest if partitions are used
+# #############################################################################
+diag(`/tmp/12345/use < $trunk/t/pt-query-digest/samples/issue_611.sql`);
+
+my $output = `$trunk/bin/pt-query-digest $trunk/t/pt-query-digest/samples/slow-issue-611.txt --explain h=127.1,P=12345,u=msandbox,p=msandbox 2>&1`;
+like(
+   $output,
+   qr/partitions: p\d/,
+   'EXPLAIN /*!50100 PARTITIONS */ (issue 611)'
+);
+
+# #############################################################################
+# Done.
+# #############################################################################
+$sb->wipe_clean($dbh);
+exit;