Include template hook in RuboCop check

Author: jawshooah

.overcommit.yml

@@ -8,6 +8,11 @@ PreCommit:
   RuboCop:
     enabled: true
     command: ['bundle', 'exec', 'rubocop']
+    include:
+      - '**/*.gemspec'
+      - '**/*.rb'
+      - '**/Gemfile'
+      - template-dir/hooks/overcommit-hook
 
   TravisLint:
     enabled: true

template-dir/hooks/overcommit-hook

@@ -27,10 +27,12 @@ end
 
 # Check if Overcommit should invoke a Bundler context for loading gems
 require 'yaml'
+# rubocop:disable Style/RescueModifier
 if gemfile = YAML.load_file('.overcommit.yml')['gemfile'] rescue nil
   ENV['BUNDLE_GEMFILE'] = gemfile
   require 'bundler/setup'
 end
+# rubocop:enable Style/RescueModifier
 
 begin
   require 'overcommit'