fix common misspelling [ci skip]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53299 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
fix common misspelling [ci skip]
[ruby-core:72466] [Bug #11870]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53299 b2dd03c8-39d4-4d8f-98ff-823fe69b080e