Fix error message in make_deb

qau20c26n2/opt/opensvc/bin/pkg/make_deb: line 10: cd: /opt/opensvc/bin/pkg/../../tmp/BUILDROOT/opensvc-2.1-94/..: No such file or directory

bin/pkg/make_deb

@@ -6,12 +6,13 @@ PATH_SCRIPT="$(cd $(/usr/bin/dirname $(type -p -- $0 || echo $0));pwd)"
 DEB=opensvc-$VERSION-$RELEASE.deb
 
 [[ ! -z $CHROOT ]] && {
-  MCWD=$(pwd)
-  cd $CHROOT/.. && rm -rf opensvc*
-  cd $MCWD
+  test -d $CHROOT && {
+    MCWD=$(pwd)
+    cd $CHROOT/.. && rm -rf opensvc*
+    cd $MCWD
+  }
 }
 
-
 function changelog {
 	git log -n 100 --pretty=format:"opensvc (__V__) unstable; urgency=medium%n%n  * %s%n%n -- %an <%ae>  %ad%n" | \
         awk -v BRANCH=$BRANCH 'BEGIN{cmd="git describe --tags " BRANCH ; cmd | getline rev; split(rev, a, "-"); rev=a[2]}{if (rev<0){exit};if (/__V__/){sub(/__V__/, a[1] "-" rev, $0); print $0; rev=rev-1} else {print}}'