Log Message:
Update to git-1.5.4.  Remove stray Makefile.common in scmgit-docs.
There are quite a few changes and (welcomed) fixes:  please see
the release notes in ${WRKSRC}/Documentation/RelNotes-1.5.4.
A small subset of the changes are included here.

Added
-----

 * i18n support for gitk.

Removal
-------

 * "git svnimport" was removed in favor of "git svn".  It is \ 
still there
   in the source tree (contrib/examples) but unsupported.

 * As git-commit and git-status have been rewritten, "git runstatus"
   helper script lost all its users and has been removed.

Fixes since v1.5.3 (unique to the 1.5.4 branch)
------------------

These fixes are only in v1.5.4 and not backported to v1.5.3 maintenance
series.

 * The way "git diff --check" behaves is much more consistent with the way
   "git apply --whitespace=warn" works.

 * "git svn" talking with the SVN over HTTP will correctly quote branch
   and project names.

 * "git config" did not work correctly on platforms that define
   REG_NOMATCH to an even number.

 * Recent versions of AsciiDoc 8 has a change to break our
   documentation; a workaround has been implemented.

 * "git diff --color-words" colored context lines in a wrong color.