Merge branch 'maint-1.6.1' into maint-1.6.2

* maint-1.6.1:
git-show-ref.txt: remove word and make consistent
git-svn documentation: fix typo in 'rebase vs. pull/merge' section
use xstrdup, not strdup in ll-merge.c

diff --cc Documentation/git-svn.txt
Simple merge