Fix the mysterious "File mode specification error"
Fix the mysterious "File mode specification error"

https://debbugs.gnu.org/cgi/bugreport.cgi?bug=28492

This error was showing up as (vc-git--out-ok "config" "remote.upstream.url") was
returning nil for one of the projects and so the string-match-p threw the type
mismatch error.

kaushalmodi/.emacs.d,kaushalmodi/.emacs.d