Install all packages via DESTDIR var and not prefix.

This removes many assignments that were needed before, and fixes
some packages to install its manpage/info files.

--HG--
extra : convert_revision : 5422f921ef81d089ed95ce0c52e5106ea10b2165

templates/tzdata/template

@@ -6,7 +6,6 @@ distfiles="
 ftp://elsie.nci.nih.gov/pub/${pkgname}${version}.tar.gz
 ftp://elsie.nci.nih.gov/pub/tzcode${version}.tar.gz"
 build_style=gnu_makefile
-make_install_args="DESTDIR=$XBPS_DESTDIR/$pkgname-$version"
 short_desc="Time zone and daylight-saving time data"
 maintainer="Juan RP <xtraeme@gmail.com>"
 checksum="