git-1.4.4.3, also 1.5.0rc0: send-email gets empty From:

I updated a local project, git-format-patch:ed, and then:

  $ git send-email --to=olpc@listas.inf.utfsm.cl --no-signed-off-by-cc /tmp/0001-Add-myself-to-AUTHORS.txt
  Who should the emails appear to be from? 
  Emails will be sent from: 
  Message-ID to be used as In-Reply-To for the first email? 
  /tmp/0001-Add-myself-to-AUTHORS.txt
  Use of uninitialized value in concatenation (.) or string at /usr/bin/git-send-email line 392.
  (mbox) Adding cc: Horst H. von Brand <vonbrand@inf.utfsm.cl> from line 'From: Horst H. von Brand <vonbrand@inf.utfsm.cl>'
  OK. Log says:
  Date: Wed, 27 Dec 2006 10:27:39 -0300
  Sendmail: /usr/sbin/sendmail
  From: 
  Subject: [PATCH] Add myself to AUTHORS
  Cc: Horst H. von Brand <vonbrand@inf.utfsm.cl>
  To: olpc@listas.inf.utfsm.cl

  Result: OK

I didn't add a From:, per manpage it is assumed to be GIT_COMMITER_IDENT (from 'git-var -l' this is 'Horst H. von Brand <vonbrand@inf.utfsm.cl> 1167226309 -0300'). Note particularly the "Emails will be sent from:" line!

The resulting message is formed right (it has a From: header), so this is just a UI glitch.

The same output from 1.5.0rc0 here.