Fix initial_page_content method to avoid referencing @page instance variable in wiki formatting helpers (#40513).

Patch by Takuya Kodama (@otegami).


git-svn-id: https://svn.redmine.org/redmine/trunk@22781 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/wiki_formatting/common_mark/helper.rb

@@ -33,7 +33,7 @@ module Redmine
         end
 
         def initial_page_content(page)
-          "# #{@page.pretty_title}"
+          "# #{page.pretty_title}"
         end
 
         def heads_for_wiki_formatter

lib/redmine/wiki_formatting/markdown/helper.rb

@@ -33,7 +33,7 @@ module Redmine
         end
 
         def initial_page_content(page)
-          "# #{@page.pretty_title}"
+          "# #{page.pretty_title}"
         end
 
         def heads_for_wiki_formatter

lib/redmine/wiki_formatting/textile/helper.rb

@@ -32,7 +32,7 @@ module Redmine
         end
 
         def initial_page_content(page)
-          "h1. #{@page.pretty_title}"
+          "h1. #{page.pretty_title}"
         end
 
         def heads_for_wiki_formatter