For single line git commit messages, the close quote should be on the same line as the open quote

Signed-off-by: Rémy Coutable <remy@rymai.me>

app/models/project_services/jira_service.rb

@@ -220,7 +220,7 @@ class JiraService < IssueTrackerService
     entity_title = data[:entity][:title]
     project_name = data[:project][:name]
-    message      = "[#{user_name}|#{user_url}] mentioned this issue in [a #{entity_name} of #{project_name}|#{entity_url}]:\n'#{entity_title}'"
+    message      = "[#{user_name}|#{user_url}] mentioned this issue in [a #{entity_name} of #{project_name}|#{entity_url}]:\n'#{entity_title.chomp}'"
     link_title   = "GitLab: Mentioned on #{entity_name} - #{entity_title}"
     link_props   = build_remote_link_props(url: entity_url, title: link_title)

changelogs/unreleased/chomp-git-status-message.yml

+---
+title: For single line git commit messages, the close quote should be on the same
+  line as the open quote
+merge_request:
+author:

spec/services/system_note_service_spec.rb

@@ -694,7 +694,7 @@ describe SystemNoteService, services: true do
     describe "existing reference" do
       before do
-        message = "[#{author.name}|http://localhost/#{author.username}] mentioned this issue in [a commit of #{project.path_with_namespace}|http://localhost/#{project.path_with_namespace}/commit/#{commit.id}]:\n'#{commit.title}'"
+        message = "[#{author.name}|http://localhost/#{author.username}] mentioned this issue in [a commit of #{project.path_with_namespace}|http://localhost/#{project.path_with_namespace}/commit/#{commit.id}]:\n'#{commit.title.chomp}'"
         allow_any_instance_of(JIRA::Resource::Issue).to receive(:comments).and_return([OpenStruct.new(body: message)])
       end