So I found some ^Ms in libgo. $ grep -l '^M' libgo/go/mime/multipart/testdata/nested-mime libgo/go/mime/multipart/testdata/nested-mime
This file is likely meant to contain them if I don't miss my guess. The problem is, it is not tagged as a binary file in svn and git, leading to inconsistent contents depending upon how it is pulled. Could you either tag as binary in svn/git or strip the the ^Ms, thanks.