I don't know what date "Visual Studio 6" implies, but I'd been using Irix for a few years before GNU Emacs 20 and coding conversion; I can't speak for anything

I don't know what date "Visual Studio 6" implies, but I'd been using Irix for a few years before GNU Emacs 20 and coding conversion; I can't speak for anything vi-le. Anyway, it's not uncommon to find mixed line endings even these days (which Emacs indicates).