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-rw-r--r--lib/redmine/wiki_formatting/markdown/formatter.rb2
-rw-r--r--lib/redmine/wiki_formatting/markdown/helper.rb2
-rw-r--r--lib/redmine/wiki_formatting/markdown/html_parser.rb2
3 files changed, 6 insertions, 0 deletions
diff --git a/lib/redmine/wiki_formatting/markdown/formatter.rb b/lib/redmine/wiki_formatting/markdown/formatter.rb
index 4bfd00c79..f605e94b7 100644
--- a/lib/redmine/wiki_formatting/markdown/formatter.rb
+++ b/lib/redmine/wiki_formatting/markdown/formatter.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: false
+
# Redmine - project management software
# Copyright (C) 2006-2017 Jean-Philippe Lang
#
diff --git a/lib/redmine/wiki_formatting/markdown/helper.rb b/lib/redmine/wiki_formatting/markdown/helper.rb
index fb9f1a939..0a5998cf4 100644
--- a/lib/redmine/wiki_formatting/markdown/helper.rb
+++ b/lib/redmine/wiki_formatting/markdown/helper.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: false
+
# 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 f34034093..7cf0a1d37 100644
--- a/lib/redmine/wiki_formatting/markdown/html_parser.rb
+++ b/lib/redmine/wiki_formatting/markdown/html_parser.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: false
+
# Redmine - project management software
# Copyright (C) 2006-2017 Jean-Philippe Lang
#