Ruby

array.c: no infection by unused separator

• array.c (rb_ary_join): should not infected by separator if it is not
  used. [ruby-core:42161][Bug #5902]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36381 b2dd03c8-39d4-4d8f-98ff-823fe69b080e