Copy-edit cross project pipeline error messages

ee/app/presenters/ee/commit_status_presenter.rb

@@ -6,8 +6,8 @@ module EE
     prepended do
       EE_CALLOUT_FAILURE_MESSAGES = const_get(:CALLOUT_FAILURE_MESSAGES).merge(
         protected_environment_failure: 'The environment this job is deploying to is protected. Only users with permission may successfully run this job.',
-        insufficient_bridge_permissions: 'This job could not be executed because of insufficient permissions to create downstream pipeline.',
-        invalid_bridge_trigger: 'This job could not be executed because downstream pipeline trigger definition is not valid.'
+        insufficient_bridge_permissions: 'This job could not be executed because of insufficient permissions to create a downstream pipeline.',
+        invalid_bridge_trigger: 'This job could not be executed because downstream pipeline trigger definition is invalid.'
       ).freeze
 
       EE::CommitStatusPresenter.private_constant :EE_CALLOUT_FAILURE_MESSAGES

ee/lib/ee/gitlab/ci/status/build/failed.rb

@@ -11,7 +11,7 @@ module EE
             prepended do
               EE_REASONS = const_get(:REASONS).merge(
                 protected_environment_failure: 'protected environment failure',
-                invalid_bridge_trigger: 'downstream pipeline trigger definition is not valid',
+                invalid_bridge_trigger: 'downstream pipeline trigger definition is invalid',
                 insufficient_bridge_permissions: 'no permissions to trigger downstream pipeline'
               ).freeze
 

ee/spec/models/ci/pipeline_spec.rb

@@ -457,7 +457,7 @@ describe Ci::Pipeline do
         end
 
         describe '#source_bridge' do
-          it 'has does not have a bridge source' do
+          it 'does not have a bridge source' do
             expect(pipeline.source_bridge).to be_nil
           end
         end