merge revision(s) 374c8f4ebab1a740990330c732b9de965c5e8d10: [Backport #15823]
Fixed about ARGF.lineno [Bug #15823]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67719 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 374c8f4ebab1a740990330c732b9de965c5e8d10: [Backport #15823]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67719 b2dd03c8-39d4-4d8f-98ff-823fe69b080e