Eases the regexp used to determine the start of a code block (#32359).

Patch by Jens Krämer.


git-svn-id: http://svn.redmine.org/redmine/trunk@18880 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/wiki_formatting/markdown/formatter.rb

@@ -90,7 +90,7 @@ module Redmine
           inside_pre = false
           @text.split(/(^(?:.+\r?\n\r?(?:\=+|\-+)|#+.+|(?:~~~|```).*)\s*$)/).each do |part|
             level = nil
-            if part =~ /\A(~{3,}|`{3,})(\S+)?\s*$/
+            if part =~ /\A(~{3,}|`{3,})(\s*\S+)?\s*$/
               if !inside_pre
                 inside_pre = true
               elsif !$2