Merge branch 'jc/em-dash-in-doc'

AsciiDoc markup fixes. * jc/em-dash-in-doc: Documentation: AsciiDoc spells em-dash as double-dashes, not triple

Junio C Hamano committed Oct 29, 2015 at 13:59 UTC 73167677c0a0e51b3b6505a4287dd3cbf7f11497

No changes.