The tests are checking that :

- when commit.gpgsign is true, "git commit" creates signed commits

- when commit.gpgsign is false, "git commit" creates unsigned commits

- when commit.gpgsign is true, "git commit --no-gpg-sign" creates
  unsigned commits

- when commit.gpgsign is true, "git rebase -f" creates signed commits

Signed-off-by: Nicolas Vigier <boklm@mars-attacks.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Document how to override commit.gpgsign configuration that is set to
true per "git commit" invocation (parse-options machinery lets us
say "--no-gpg-sign" to do so).

"git commit-tree" does not use parse-options, so manually add the
corresponding option for now.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

If you want to GPG sign all your commits, you have to add the -S option
all the time. The commit.gpgsign config option allows to sign all
commits automatically.

Signed-off-by: Nicolas Vigier <boklm@mars-attacks.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Signed-off-by: Junio C Hamano <gitster@pobox.com>

* bw/solaris-sed-tr-test-portability:
  t4015: simplify sed command that is not even seen by sed
  Avoid difference in tr semantics between System V and BSD
  Change sed i\ usage to something Solaris' sed can handle

* vd/doc-unpack-objects:
  Documentation: "pack-file" is not literal in unpack-objects
  Documentation: restore a space in unpack-objects usage

Test fixup to a topic recently graduated.

* jk/duplicate-objects-in-packs:
  Fix '\%o' for printf from coreutils

* jk/subtree-install-fix:
  subtree: add makefile target for html docs

* ak/cvsserver-stabilize-use-of-hash-keys:
  cvsserver: Determinize output to combat Perl 5.18 hash randomization

* jk/wrap-perl-used-in-tests:
  t: use perl instead of "$PERL_PATH" where applicable
  t: provide a perl() function which uses $PERL_PATH