Remove _d from Percona::Toolkit because I can't get it to export correctly. Put Percona::Toolkit in most tools.

bin/pt-duplicate-key-checker

@@ -6,7 +6,42 @@
 
 use strict;
 use warnings FATAL => 'all';
-use constant PTDEBUG => $ENV{PTDEBUG} || 0;
+
+# This tool is "fat-packed": most of its dependent modules are embedded
+# in this file.  Setting %INC to this file for each module makes Perl aware
+# of this so it will not try to load the module from @INC.  See the tool's
+# documentation for a full list of dependencies.
+BEGIN {
+   $INC{$_} = __FILE__ for map { (my $pkg = "$_.pm") =~ s!::!/!g; $pkg } (qw(
+      Percona::Toolkit
+      Quoter
+      TableParser
+      DSNParser
+      OptionParser
+      KeySize
+      DuplicateKeyFinder
+      Daemon
+      Schema
+      SchemaIterator
+   ));
+}
+
+# ###########################################################################
+# Percona::Toolkit package
+# This package is a copy without comments from the original.  The original
+# with comments and its test file can be found in the Bazaar repository at,
+#   lib/Percona/Toolkit.pm
+#   t/lib/Percona/Toolkit.t
+# See https://launchpad.net/percona-toolkit for more information.
+# ###########################################################################
+{
+package Percona::Toolkit;
+our $VERSION = '2.1.3';
+1;
+}
+# ###########################################################################
+# End Percona::Toolkit package
+# ###########################################################################
 
 # ###########################################################################
 # Quoter package
@@ -3324,10 +3359,12 @@ package pt_duplicate_key_checker;
 use strict;
 use warnings FATAL => 'all';
 use English qw(-no_match_vars);
-use constant PTDEBUG => $ENV{PTDEBUG} || 0;
 
 use List::Util qw(max);
 
+use Percona::Toolkit;
+use constant PTDEBUG => $ENV{PTDEBUG} || 0;
+
 $OUTPUT_AUTOFLUSH = 1;
 
 my $max_width = 74;