! header="$(git config topgit.cc)" || echo "Cc: $header"
! header="$(git config topgit.bcc)" || echo "Bcc: $header"
! subject_prefix="$(git config topgit.subjectprefix)" || subject_prefix="$subject_prefix "
! header="$(git config topgit.cc)" || echo "Cc: $header"
! header="$(git config topgit.bcc)" || echo "Bcc: $header"
! subject_prefix="$(git config topgit.subjectprefix)" || subject_prefix="$subject_prefix "