MFH: r419332

• Add USES=autoreconf
• Enable compatibility with traditional man

PR: 210927
Submitted by: cpm
Reported by: Rares Vernica <rvernica@gmail.com>
Approved by: gnome (maintainer timeout, 3 weeks)
Obtained from: Gentoo (https://github.com/gentoo/gentoo/blob/master/gnome-extra/yelp/files/yelp-3.16.0-man-compatibility.patch)

Approved by: ports-secteam (junovitch)