Upgrade Perl::Tidy requirement to version 20171214

Due to https://metacpan.org/source/SHANCOCK/Perl-Tidy-20171214/CHANGES#L3

Github issue #99

Thanks to eserte (Slaven Rezić)

Build.PL

@@ -124,6 +124,7 @@ my $build = $class->new(
         'CPAN::Changes'       => 0.27,
         'File::Slurp'         => 0,
         'Test::PerlTidy'      => 0,
+        'Perl::Tidy'          => 20171214,
     },
     recommends         => { 'Sort::Naturally' => 0, },
     configure_requires => { 'Module::Build'   => 0, },

Changes

@@ -1,5 +1,6 @@
 4.10_03 0000-00-00 Duncan Ferguson <duncan_ferguson@user.sf.net>
 - Fix for multiple range expansion, as in 'h{a,b}{1,2}' (Github issue #97) (Thanks to lazyfrosch)
+- Upgrade Perl::Tidy requirement to version 20171214 (Github issue #99) (Thanks to eserte)
 
 4.10_02 2017-08-08 Duncan Ferguson <duncan_ferguson@user.sf.net>
 - Include coverage tests in the resources

lib/App/ClusterSSH.pm

@@ -1509,10 +1509,10 @@ sub create_windows() {
         -insertborderwidth => 4,
         -width             => 25,
         -class             => 'cssh',
-        )->pack(
+    )->pack(
         -fill   => "x",
         -expand => 1,
-        );
+    );
 
     $windows{history} = $windows{main_window}->Scrolled(
         "ROText",