[PATCHv2 0/8] loosening "sender" prompt in send-email

On Tue, Nov 13, 2012 at 11:48:45AM -0500, Jeff King wrote:

  [1/6]: ident: make user_ident_explicitly_given private
  [2/6]: ident: keep separate "explicit" flags for author and committer
  [3/6]: var: accept multiple variables on the command line
  [4/6]: var: provide explicit/implicit ident information
  [5/6]: Git.pm: teach "ident" to query explicitness
  [6/6]: send-email: do not prompt for explicit repo ident

Here is a re-roll of the series based on comments from Jonathan (changes
from the first version noted below):

  [1/8]: test-lib: allow negation of prerequisites
  [2/8]: t7502: factor out autoident prerequisite

These two are new, and allow us to use the same prereq from t7502 in
t9001.

  [3/8]: ident: make user_ident_explicitly_given static

Expanded the commit message to explain history of the variable.

  [4/8]: ident: keep separate "explicit" flags for author and committer

Same as before.

  [5/8]: var: accept multiple variables on the command line

 - Expanded tests to include "git var -l"
 - Use $GIT_* variables to create test "expect" files, which should make
   them less brittle.
 - Fixed "git var -l foo" to print usage instead of ignoring foo (i.e.,
   keeping the behavior the same).
 - Update usage message to match new feature.

  [6/8]: var: provide explicit/implicit ident information

Updated documentation to describe what "explicit" means. No functional
changes.

  [7/8]: Git.pm: teach "ident" to query explicitness

Improved Git.pm documentation. No functional changes.

  [8/8]: send-email: do not prompt for explicit repo ident

Test the implicit ident case, both when we have implicit ident and when
we don't. No changes to send-email.

-Peff