Git storage: don't abort if there is no default user/email set

I never ran into this because all of my computers have a global default
set for my name and email address. But if the user never uses git and has
no global settings there will be no such info. Instead of failing we need
to just set up a default ID and then try to get a best guess from the OS
(just as we used to do before libgit2 supported getting the git settings
for authorship).

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

0 files changed, 0 insertions, 0 deletions