Merge branch 'jc/doc-diff-filter-exclude'

Belated doc update for a feature added in v1.8.5. * jc/doc-diff-filter-exclude: diff: document diff-filter exclusion

Junio C Hamano committed Jul 25, 2016 at 14:13 UTC c3531e03856972b698df61c983a3375892220d51

No changes.