merge revisions r33453, r37542:
* array.c: rdoc fix and improvements
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@37544 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revisions r33453, r37542:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@37544 b2dd03c8-39d4-4d8f-98ff-823fe69b080e