Add tests for String#lstrip and rstrip
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53328 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Add tests for String#lstrip and rstrip
for String#lstrip and rstrip. The test cases are used from
string.c ruby-doc comments. [Fix GH-1174]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53328 b2dd03c8-39d4-4d8f-98ff-823fe69b080e