merge revision(s) 64900: [Backport #15190]
Just a shebang is valid code [ruby-core:89240] [Bug #15190]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@64980 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 64900: [Backport #15190]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@64980 b2dd03c8-39d4-4d8f-98ff-823fe69b080e