ruby.h: NULL as empty array
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59483 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
ruby.h: NULL as empty array
NULL when no arguments, for clang which defines static array
when an empty array is used.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59483 b2dd03c8-39d4-4d8f-98ff-823fe69b080e