[projects/pld-builder.new] A better way to get last tag (thanks dreanog :)

[baggins]

commit ad458cbe9de3a29d50257f9ef0737df4fbf92536
Author: Jan Rękorajski <baggins at pld-linux.org>
Date:   Fri Aug 10 22:44:55 2012 +0200

    A better way to get last tag (thanks dreanog :)

 client/rebuild-th-kernel.sh | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/client/rebuild-th-kernel.sh b/client/rebuild-th-kernel.sh
index 3bdabbe..b0097e7 100755
--- a/client/rebuild-th-kernel.sh
+++ b/client/rebuild-th-kernel.sh
@@ -32,7 +32,7 @@ pkgs_longterm="
 # autotag from rpm-build-macros
 # displays latest used tag for a specfile
 autotag() {
-	local out spec pkg fmt eval_git
+	local out spec pkg
 	for spec in "$@"; do
 		# strip branches
 		pkg=${spec%:*}
@@ -43,9 +43,7 @@ autotag() {
 		# or .ext
 		pkg=${pkg%%.spec}
 		cd $pkg
-		fmt='r=%(refname); echo ${r#refs/tags/}'
-		eval_git=`git for-each-ref refs/tags/auto/${dist}/${pkg}-${alt_kernel}* --sort=-authordate --format="$fmt" --count=1 --shell`
-		out=$(eval $eval_git)
+		out=$(git for-each-ref refs/tags/auto/${dist}/${pkg}-${alt_kernel}* --sort=-authordate --format='%(refname:short)' --count=1)
 		echo "$spec:$out"
 		cd -
 	done