Expand CI regular expressions validation message

lib/gitlab/config/entry/validators.rb

@@ -245,7 +245,7 @@ module Gitlab
           private
 
           def validation_message
-            'should be an array of strings or regexps using re2 syntax'
+            'should be an array of strings or regular expressions using re2 syntax'
           end
 
           def validate_array_of_strings_or_regexps(values)
@@ -270,7 +270,7 @@ module Gitlab
           #
           def validation_message
             if ::Feature.enabled?(:allow_unsafe_ruby_regexp, default_enabled: :yaml)
-              'should be an array of strings or regexps'
+              'should be an array of strings or regular expressions'
             else
               super
             end

spec/lib/gitlab/ci/config/entry/policy_spec.rb

@@ -88,7 +88,7 @@ RSpec.describe Gitlab::Ci::Config::Entry::Policy do
         describe '#errors' do
           it 'saves errors' do
             expect(entry.errors)
-              .to include /policy config should be an array of strings or regexps/
+              .to include /policy config should be an array of strings or regular expressions/
           end
         end
       end

spec/lib/gitlab/ci/yaml_processor_spec.rb

@@ -613,13 +613,13 @@ module Gitlab
           context 'when it is an array of integers' do
             let(:only) { [1, 1] }
 
-            it_behaves_like 'returns errors', 'jobs:rspec:only config should be an array of strings or regexps using re2 syntax'
+            it_behaves_like 'returns errors', 'jobs:rspec:only config should be an array of strings or regular expressions using re2 syntax'
           end
 
           context 'when it is invalid regex' do
             let(:only) { ["/*invalid/"] }
 
-            it_behaves_like 'returns errors', 'jobs:rspec:only config should be an array of strings or regexps using re2 syntax'
+            it_behaves_like 'returns errors', 'jobs:rspec:only config should be an array of strings or regular expressions using re2 syntax'
           end
         end
 
@@ -637,13 +637,13 @@ module Gitlab
           context 'when it is an array of integers' do
             let(:except) { [1, 1] }
 
-            it_behaves_like 'returns errors', 'jobs:rspec:except config should be an array of strings or regexps using re2 syntax'
+            it_behaves_like 'returns errors', 'jobs:rspec:except config should be an array of strings or regular expressions using re2 syntax'
           end
 
           context 'when it is invalid regex' do
             let(:except) { ["/*invalid/"] }
 
-            it_behaves_like 'returns errors', 'jobs:rspec:except config should be an array of strings or regexps using re2 syntax'
+            it_behaves_like 'returns errors', 'jobs:rspec:except config should be an array of strings or regular expressions using re2 syntax'
           end
         end
       end