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

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

Junio C Hamano committed Nov 4, 2015 at 14:20 UTC bc1e0481bf0a01e4f4741ee206cc0d81e667d73a

No changes.