Bug: rebase when an author uses accents in name on MacOSx

Hello,

I've come across behavior I'd say is a bug.

We have a developer with an accent in his name, Rémi Leblond.  Very recently we stopped being able to rebase getting the error

  lanny(master);<work/IdeaProjects/Piper> git rebase master rl-clean292
  First, rewinding head to replay your work on top of it...
  /sw/lib/git-core/git-am: line 692: Leblond: command not found
  Patch does not have a valid e-mail address.
  lanny((ae6c220...)|REBASE);<work/IdeaProjects/Piper> 

Versions 1.7.10.2 is (now?) exhibiting this behavior.  We've been rebasing fine for several month which is why I wonder if being on MacOSX is involved?  (I'm at 10.7.4)  Some digging shows the root cause to be in function get_author_ident_from_commit at line 210 of git-core/git-sh-setup, namely the sed with environment overrides LANG=C LC_ALL=C.  This causes git-am to incorrectly build the .git/rebase-apply/author-script.

  lanny((ae6c220...)|REBASE);<work/IdeaProjects/Piper> cat .git/rebase-apply/author-script
  GIT_AUTHOR_NAME='R'émi Leblond
  GIT_AUTHOR_EMAIL='remi@spotinfluence.com'
  GIT_AUTHOR_DATE='@1335301038 -0600'

From the command-line

  lanny;~> echo $LANG
  en_US.UTF-8
  lanny;~> echo $LC_ALL

  lanny;~> echo "Rémi Leblond" | LANG=C LC_ALL=C sed -ne 's/.*/GIT_AUTHOR_NAME='\''&'\''/p'
  GIT_AUTHOR_NAME='R'émi Leblond
  lanny;~> echo "Rémi Leblond" | sed -ne 's/.*/GIT_AUTHOR_NAME='\''&'\''/p'
  GIT_AUTHOR_NAME='Rémi Leblond'

I can work around it easily enough by editing git-sh-setup to remove the locale overrides but thought a bug report might be useful.

Enjoy,
  -ljr

--- Lanny Ripple lanny@spotinfluence.com