Enable frozen string for app/helpers/**/*.rb

Partially addresses #47424.

1 files changed, 9 insertions, 7 deletions

diff --git a/app/helpers/issues_helper.rb b/app/helpers/issues_helper.rb
index 5b27d1d9404..f7d448ea3a7 100644
--- a/app/helpers/issues_helper.rb
+++ b/app/helpers/issues_helper.rb
@@ -1,9 +1,11 @@
+# frozen_string_literal: true
+
 module IssuesHelper
   def issue_css_classes(issue)
-    classes = "issue"
-    classes << " closed" if issue.closed?
-    classes << " today" if issue.today?
-    classes
+    classes = ["issue"]
+    classes << "closed" if issue.closed?
+    classes << "today" if issue.today?
+    classes.join(' ')
   end
 
   # Returns an OpenStruct object suitable for use by <tt>options_from_collection_for_select</tt>
@@ -105,8 +107,8 @@ module IssuesHelper
   end
 
   def link_to_discussions_to_resolve(merge_request, single_discussion = nil)
-    link_text = merge_request.to_reference
-    link_text += " (discussion #{single_discussion.first_note.id})" if single_discussion
+    link_text = [merge_request.to_reference]
+    link_text << "(discussion #{single_discussion.first_note.id})" if single_discussion
 
     path = if single_discussion
              Gitlab::UrlBuilder.build(single_discussion.first_note)
@@ -115,7 +117,7 @@ module IssuesHelper
              project_merge_request_path(project, merge_request)
            end
 
-    link_to link_text, path
+    link_to link_text.join(' '), path
   end
 
   def show_new_issue_link?(project)