Add bash completions from openindiana-completions project.
Remove pkgutil which we don't have.

--- bash-completion-2.15.0/completions/Makefile.am.orig	2024-11-24 23:21:02.000000000 +0100
+++ bash-completion-2.15.0/completions/Makefile.am	2024-12-01 11:53:05.213578298 +0100
@@ -499,13 +499,17 @@
 		_yum \
 		yum-arch \
 		zopfli \
-		zopflipng
+		zopflipng \
+		beadm \
+		bootadm \
+		dladm \
+		pfexec \
+		pkg \
+		zfs \
+		zones \
+		zpool
 
 
-if SOLARIS
-bashcomp_DATA += pkgutil
-endif
-
 if BSD
 bashcomp_DATA += pkg_delete
 endif