3 files changed, 4 insertions, 4 deletions
diff --git a/lib/redmine/wiki_formatting/markdown/formatter.rb b/lib/redmine/wiki_formatting/markdown/formatter.rb
index f605e94b7..20c18bcaf 100644
--- a/lib/redmine/wiki_formatting/markdown/formatter.rb
+++ b/lib/redmine/wiki_formatting/markdown/formatter.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 
 # Redmine - project management software
 # Copyright (C) 2006-2017  Jean-Philippe Lang
@@ -83,7 +83,7 @@ module Redmine
         end
 
         def extract_sections(index)
-          sections = ['', '', '']
+          sections = [+'', +'', +'']
           offset = 0
           i = 0
           l = 1
diff --git a/lib/redmine/wiki_formatting/markdown/helper.rb b/lib/redmine/wiki_formatting/markdown/helper.rb
index 0a5998cf4..4f79acdd7 100644
--- a/lib/redmine/wiki_formatting/markdown/helper.rb
+++ b/lib/redmine/wiki_formatting/markdown/helper.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 
 # Redmine - project management software
 # Copyright (C) 2006-2017  Jean-Philippe Lang
diff --git a/lib/redmine/wiki_formatting/markdown/html_parser.rb b/lib/redmine/wiki_formatting/markdown/html_parser.rb
index 7cf0a1d37..d3900a2bd 100644
--- a/lib/redmine/wiki_formatting/markdown/html_parser.rb
+++ b/lib/redmine/wiki_formatting/markdown/html_parser.rb
@@ -1,4 +1,4 @@
-# frozen_string_literal: false
+# frozen_string_literal: true
 
 # Redmine - project management software
 # Copyright (C) 2006-2017  Jean-Philippe Lang