Fix "du" options for symbolic link dir
release tools use symbolic link as source dir, "du -sk" does not work.
"du -skL" follow the sym links.
Change-Id: If8fcf1bb7da850efd578b85a6fbc0c5533f90f35
diff --git a/mkuserimg.sh b/mkuserimg.sh
index c0efdb8..3480a20 100755
--- a/mkuserimg.sh
+++ b/mkuserimg.sh
@@ -48,7 +48,7 @@
*) echo "Only ext2, ext3, ext4 are supported!"; exit 6 ;;
esac
-num_blocks=`du -sk $SRC_DIR | tail -n1 | awk '{print $1;}'`
+num_blocks=`du -skL $SRC_DIR | tail -n1 | awk '{print $1;}'`
if [ $num_blocks -lt 20480 ]; then
extra_blocks=3072
else
