Merge branch 'jk/clone-dissociate' into maint

Code clean-up. * jk/clone-dissociate: clone: reorder --dissociate and --reference options clone: use OPT_STRING_LIST for --reference

Junio C Hamano committed Jun 16, 2015 at 14:33 UTC 37d6f933dff7d5c295870c85399f5fd22072643a

No changes.