Merge branch 'maint-1.7.6' into maint

* maint-1.7.6: make the sample pre-commit hook script reject names with newlines, too git-read-tree.txt: update sparse checkout examples git-read-tree.txt: correct sparse-checkout and skip-worktree description git-read-tree.txt: language and typography fixes unpack-trees: print "Aborting" to stderr Documentation/git-update-index: refer to 'ls-files' Documentation: basic configuration of notes.rewriteRef