Author field is formatted with csprintf, which would be appropriate
if the resulting string was concatenated into a shell command as a
string -- but because the flags are passed as a vector of strings
and not parsed by the shell, this results in extraneous shell
quoting making it into to author field. In particular this
renders my name as D'\''Anna instead of D'Anna

Performed 'arc patch' with and without these changes, confirmed
that my apostrophe was no longer mangled by shell quotes in the
resulting commit.