doc/PKGBUILD: clarify scriptlet version arguments

It was a bit unclear that both pkgver and pkgrel were included in the
passed version strings; clarify this fact in the manpage. Also include
epoch in the mix now that it exists.

Also make two other minor consistency touchups to code-print variables
in text.

Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions