diffpkg: support comparing two given package archives

This adds support similar to diffpkg from the infrastructure repo
that is based on the assumption that two archives can be passed
to the tooling in order to compare them.

1 files changed, 1 insertions, 0 deletions

diff --git a/zsh_completion.in b/zsh_completion.in
index c76e66e..eee9776 100644
--- a/zsh_completion.in
+++ b/zsh_completion.in
@@ -49,6 +49,7 @@ _diffpkg_args=(
 	'(-m --makepkg-config)'{-m,--makepkg-config}'[Location of a makepkg config file]:makepkg_config:_files -g "*.conf(.)"'
 	'(-v --verbose)'{-v,--verbose}'[Provide more detailed/unfiltered output]'
 	'(-h --help)'{-h,--help}'[Display usage]'
+	'*:packages:_devtools_completions_all_packages'
 )
 
 _finddeps_args=(