testing/amavisd-new: post-install now called by APKBUILD

testing/amavisd-new/APKBUILD

@@ -10,7 +10,7 @@ depends="uclibc sed file perl perl-archive-zip perl-convert-tnef
 perl-convert-uulib perl-mime-tools perl-mail-tools perl-net-server
 perl-io-stringy perl-unix-syslog perl-db perl-mail-dkim"
 makedepends=""
-install=
+install="$pkgname.post-install"
 subpackages=""
 source="http://www.ijs.si/software/amavisd/$pkgname-$pkgver.tar.gz"