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/grep/template

@@ -3,8 +3,7 @@ pkgname=grep
 version=2.5.4
 distfiles="http://ftp.gnu.org/gnu/grep/$pkgname-$version.tar.bz2"
 build_style=gnu_configure
-configure_args="--bindir=$XBPS_DESTDIR/$pkgname-$version/bin
- --disable-perl-regexp"
+configure_args="--disable-perl-regexp"
 short_desc="The GNU grep utility"
 maintainer="Juan RP <xtraeme@gmail.com>"
 checksum=0abec64e01458fbd032e33351d8071602a959529ea796965e98338ee83a40020