diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 8d625a840..8c153bdc8 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -87,7 +87,6 @@ Layout/ClosingParenthesisIndentation:
 # Cop supports --auto-correct.
 Layout/CommentIndentation:
   Exclude:
-    - 'lib/redmine/wiki_formatting/textile/redcloth3.rb'
     - 'test/unit/lib/redmine/wiki_formatting/markdown_formatter_test.rb'
 
 # Cop supports --auto-correct.
diff --git a/lib/redmine/wiki_formatting/textile/redcloth3.rb b/lib/redmine/wiki_formatting/textile/redcloth3.rb
index 064045c1f..10959bf01 100644
--- a/lib/redmine/wiki_formatting/textile/redcloth3.rb
+++ b/lib/redmine/wiki_formatting/textile/redcloth3.rb
@@ -399,26 +399,26 @@ class RedCloth3 < String
 
     # Elements to handle
     GLYPHS = [
-    #   [ /([^\s\[{(>])?\'([dmst]\b|ll\b|ve\b|\s|:|$)/, '\1&#8217;\2' ], # single closing
-    #   [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)\'/, '\1&#8217;' ], # single closing
-    #   [ /\'(?=[#{PUNCT_Q}]*(s\b|[\s#{PUNCT_NOQ}]))/, '&#8217;' ], # single closing
-    #   [ /\'/, '&#8216;' ], # single opening
-    #   [ /</, '&lt;' ], # less-than
-    #   [ />/, '&gt;' ], # greater-than
-    #   [ /([^\s\[{(])?"(\s|:|$)/, '\1&#8221;\2' ], # double closing
-    #   [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)"/, '\1&#8221;' ], # double closing
-    #   [ /"(?=[#{PUNCT_Q}]*[\s#{PUNCT_NOQ}])/, '&#8221;' ], # double closing
-    #   [ /"/, '&#8220;' ], # double opening
-    #   [ /\b( )?\.{3}/, '\1&#8230;' ], # ellipsis
-    #   [ /\b([A-Z][A-Z0-9]{2,})\b(?:[(]([^)]*)[)])/, '<acronym title="\2">\1</acronym>' ], # 3+ uppercase acronym
-    #   [ /(^|[^"][>\s])([A-Z][A-Z0-9 ]+[A-Z0-9])([^<A-Za-z0-9]|$)/, '\1<span class="caps">\2</span>\3', :no_span_caps ], # 3+ uppercase caps
-    #   [ /(\.\s)?\s?--\s?/, '\1&#8212;' ], # em dash
-    #   [ /\s->\s/, ' &rarr; ' ], # right arrow
-    #   [ /\s-\s/, ' &#8211; ' ], # en dash
-    #   [ /(\d+) ?x ?(\d+)/, '\1&#215;\2' ], # dimension sign
-    #   [ /\b ?[(\[]TM[\])]/i, '&#8482;' ], # trademark
-    #   [ /\b ?[(\[]R[\])]/i, '&#174;' ], # registered
-    #   [ /\b ?[(\[]C[\])]/i, '&#169;' ] # copyright
+      #   [ /([^\s\[{(>])?\'([dmst]\b|ll\b|ve\b|\s|:|$)/, '\1&#8217;\2' ], # single closing
+      #   [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)\'/, '\1&#8217;' ], # single closing
+      #   [ /\'(?=[#{PUNCT_Q}]*(s\b|[\s#{PUNCT_NOQ}]))/, '&#8217;' ], # single closing
+      #   [ /\'/, '&#8216;' ], # single opening
+      #   [ /</, '&lt;' ], # less-than
+      #   [ />/, '&gt;' ], # greater-than
+      #   [ /([^\s\[{(])?"(\s|:|$)/, '\1&#8221;\2' ], # double closing
+      #   [ /([^\s\[{(>#{PUNCT_Q}][#{PUNCT_Q}]*)"/, '\1&#8221;' ], # double closing
+      #   [ /"(?=[#{PUNCT_Q}]*[\s#{PUNCT_NOQ}])/, '&#8221;' ], # double closing
+      #   [ /"/, '&#8220;' ], # double opening
+      #   [ /\b( )?\.{3}/, '\1&#8230;' ], # ellipsis
+      #   [ /\b([A-Z][A-Z0-9]{2,})\b(?:[(]([^)]*)[)])/, '<acronym title="\2">\1</acronym>' ], # 3+ uppercase acronym
+      #   [ /(^|[^"][>\s])([A-Z][A-Z0-9 ]+[A-Z0-9])([^<A-Za-z0-9]|$)/, '\1<span class="caps">\2</span>\3', :no_span_caps ], # 3+ uppercase caps
+      #   [ /(\.\s)?\s?--\s?/, '\1&#8212;' ], # em dash
+      #   [ /\s->\s/, ' &rarr; ' ], # right arrow
+      #   [ /\s-\s/, ' &#8211; ' ], # en dash
+      #   [ /(\d+) ?x ?(\d+)/, '\1&#215;\2' ], # dimension sign
+      #   [ /\b ?[(\[]TM[\])]/i, '&#8482;' ], # trademark
+      #   [ /\b ?[(\[]R[\])]/i, '&#174;' ], # registered
+      #   [ /\b ?[(\[]C[\])]/i, '&#169;' ] # copyright
     ]
 
     H_ALGN_VALS = {