* man/rake.1: Update latest man content by @aledovsky
  [fix GH-771][ci skip]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48658 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* remove trailing spaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48659 b2dd03c8-39d4-4d8f-98ff-823fe69b080e