t / t5100 / msg0018--no-inbody-headerson commit tag: add tag.gpgSign config option to force all tags be GPG-signed (1c6b565)
   1From: Another Thor
   2 <a.thor@example.com>
   3Subject: This one contains
   4        a tab
   5 and a space
   6
   7a commit message
   8