merge revision(s) 53023: [Backport #11313]
* cont.c: fix a double word typo. [Bug #11313][ruby-core:69749]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@53922 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 53023: [Backport #11313]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@53922 b2dd03c8-39d4-4d8f-98ff-823fe69b080e