Add linting, pass gentle level

lib/Pear/LocalLoop/Controller/Admin/Reports.pm

@@ -73,7 +73,7 @@ sub pg_or_sqlite {
     return \$sqlite_sql;
   } else {
     $c->app->log->warn('Unknown Driver Used');
-    return undef;
+    return;
   }
 }
 

lib/Pear/LocalLoop/Controller/Admin/Transactions.pm

@@ -113,7 +113,7 @@ sub pg_or_sqlite {
     return \$sqlite_sql;
   } else {
     $c->app->log->warn('Unknown Driver Used');
-    return undef;
+    return;
   }
 }
 

lib/Pear/LocalLoop/Controller/Api/Categories.pm

@@ -79,7 +79,7 @@ sub pg_or_sqlite {
     return \$sqlite_sql;
   } else {
     $c->app->log->warn('Unknown Driver Used');
-    return undef;
+    return;
   }
 }
 

lib/Pear/LocalLoop/Controller/Api/Stats.pm

@@ -505,7 +505,7 @@ sub pg_or_sqlite {
     return \$sqlite_sql;
   } else {
     $c->app->log->warn('Unknown Driver Used');
-    return undef;
+    return;
   }
 }
 

lib/Pear/LocalLoop/Controller/Api/V1/Customer/Graphs.pm

@@ -160,7 +160,7 @@ sub pg_or_sqlite {
     return \$sqlite_sql;
   } else {
     $c->app->log->warn('Unknown Driver Used');
-    return undef;
+    return;
   }
 }
 

lib/Pear/LocalLoop/Controller/Root.pm

@@ -16,7 +16,7 @@ sub under {
     return 1;
   }
   $c->redirect_to('/');
-  return undef;
+  return;
 }
 
 sub auth_login {

lib/Pear/LocalLoop/Schema/ResultSet/Leaderboard.pm

@@ -13,7 +13,7 @@ sub get_latest {
 
   my $type_result = $self->find_by_type( $type );
 
-  return undef unless defined $type_result;
+  return unless defined $type_result;
 
   my $latest = $type_result->search_related('sets', {}, {
     order_by => { -desc => 'date' },
@@ -29,7 +29,7 @@ sub create_new {
 
   my $type_result = $self->find_by_type($type);
 
-  return undef unless $type_result;
+  return unless $type_result;
 
   return $type_result->create_new($date);
 }

lib/Pear/LocalLoop/Schema/Script/DeploymentHandler.pm

@@ -1,5 +1,8 @@
 package Pear::LocalLoop::Schema::Script::DeploymentHandler;
 
+use strict;
+use warnings;
+
 use MooX::Options::Actions;
 use Module::Runtime qw/ use_module /;
 use DBIx::Class::DeploymentHandler;