Merge branch 'maint-1.7.7' into maint

* maint-1.7.7: docs: describe behavior of relative submodule URLs Documentation: read-tree --prefix works with existing subtrees Add MYMETA.json to perl/.gitignore

Junio C Hamano committed Jan 3, 2012 at 13:47 UTC bc0fe84b064d2185e147b7c1f98bb6f9b7966b2c

No changes.