perlcritic: use strict, use warnings

src/lib/Hydra/Helper/AddBuilds.pm

@@ -1,6 +1,7 @@
 package Hydra::Helper::AddBuilds;
 
 use strict;
+use warnings;
 use utf8;
 use Encode;
 use JSON;

src/lib/Hydra/Helper/CatalystUtils.pm

@@ -2,6 +2,7 @@ package Hydra::Helper::CatalystUtils;
 
 use utf8;
 use strict;
+use warnings;
 use Exporter;
 use Readonly;
 use Nix::Store;

src/lib/Hydra/Helper/Email.pm

@@ -1,6 +1,7 @@
 package Hydra::Helper::Email;
 
 use strict;
+use warnings;
 use Email::MIME;
 use Email::Sender::Simple qw(sendmail);
 use Exporter 'import';

src/lib/Hydra/Helper/Escape.pm

@@ -1,6 +1,7 @@
 package Hydra::Helper::Escape;
 
 use strict;
+use warnings;
 use base qw(Exporter);
 use Hydra::Helper::AttributeSet;
 

src/lib/Hydra/Helper/Nix.pm

@@ -1,6 +1,7 @@
 package Hydra::Helper::Nix;
 
 use strict;
+use warnings;
 use Exporter;
 use File::Path;
 use File::Basename;