grml-debootstrap own version detection code simplification

diff --git a/grml-debootstrap b/grml-debootstrap
index b65b26a..0c0df3f 100755 (executable)
--- a/grml-debootstrap
+++ b/grml-debootstrap
@@ -8,7 +8,7 @@
 
 # variables {{{
 PN="$(basename $0)"
-VERSION="$(dpkg --list $PN 2>/dev/null| awk '/^i/ {print $3}')"
+VERSION="$(dpkg-query --show --showformat='${Version}' "$PN")"
 VERSION="${VERSION:-unknown}"
 MNTPOINT="/mnt/debootstrap.$$"