merge revision(s) 41026: [Backport #8242]

	* range.c: Fix rdoc on Range#bsearch [Bug #8242] [ruby-core:54143]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@41033 b2dd03c8-39d4-4d8f-98ff-823fe69b080e