[PATCH] Cleanup scmversion script, fix --save-scmversion option

[Marek Marczykowski <marmarek@invisiblethingslab.com>]

Remove unused variable, fix erroneously removed --save-scmversion code.

Signed-off-by: Marek Marczykowski <marmarek@invisiblethingslab.com>
---
 xen/tools/scmversion | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/xen/tools/scmversion b/xen/tools/scmversion
index 219d898..b0c3b95 100755
--- a/xen/tools/scmversion
+++ b/xen/tools/scmversion
@@ -16,10 +16,10 @@ usage() {
 	exit 1
 }
 
-scm_only=false
+save_scm=false
 srctree=.
 if test "$1" = "--save-scmversion"; then
-	scm_only=true
+	save_scm=true
 	shift
 fi
 if test $# -gt 0; then
@@ -32,17 +32,10 @@ fi
 
 scm_version()
 {
-	local short
-	short=false
-
-	cd "$srctree"
 	if test -e .scmversion; then
 		cat .scmversion
 		return
 	fi
-	if test "$1" = "--short"; then
-		short=true
-	fi
 
 	# Check for git and a git repo.
 	if test -d .git && head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
@@ -98,4 +91,8 @@ cd $srctree
 # full scm version string
 res="$(scm_version)"
 
+if [ "$save_scm" = "true" ]; then
+    echo $res > .scmversion
+fi
+
 echo "$res"
-- 
1.8.1.4