[PATCH] git-p4: small improvements to user-preservation

. Slightly more paranoid checking of results from 'p4 change'
. Remove superfluous "-G"
. Don't modify the username if it is unchanged.
. Add a comment in the change template to show what is
  going to be done.

Luke Diamand (1):
  git-p4: small improvements to user-preservation

 contrib/fast-import/git-p4 |   19 ++++++++++++++-----
 1 files changed, 14 insertions(+), 5 deletions(-)