Since a hook can't be interactive, just print the list of pacdiffs

PKGBUILD

@@ -1,6 +1,6 @@
 # Maintainer: David Thurstenson <thurstylark@gmail.com>
 pkgname=pacdiff-hook
-pkgver=0.1
+pkgver=0.2
 pkgrel=1
 pkgdesc="A hook to run pacdiff after any run of pacman"
 arch=('any')
@@ -9,7 +9,7 @@ license=('GPL')
 groups=('tlconfig')
 depends=('pacman-contrib' 'vim')
 source=("pacdiff.hook")
-md5sums=('1c8c59a99410668ebc7ebee5429da89f')
+md5sums=('1593196d71a84ac8c5f9d58c96c00508')
 
 package() {
 	install -Dm644 pacdiff.hook ${pkgdir}/usr/share/libalpm/hooks/pacdiff.hook

pacdiff.hook

@@ -5,6 +5,6 @@ Operation = Remove
 Type = Package
 Target = *
 [Action]
-Description = Runs pacdiff utility
+Description = The following pacdiffs were found:
 When = PostTransaction
-Exec = /usr/bin/pacdiff
+Exec = /usr/bin/pacdiff -o