Pass a directory for find to look in for OS X

Fixes the illegal option error here:
http://ci.bazel.io/job/Bazel/JAVA_VERSION=1.7,PLATFORM_NAME=darwin-x86_64/162/console

--
MOS_MIGRATED_REVID=105189685

scripts/packages/BUILD

diff --git a/scripts/packages/BUILD b/scripts/packages/BUILD
index ef9257c..0e47b20 100644
--- a/scripts/packages/BUILD
+++ b/scripts/packages/BUILD
@@ -141,7 +141,7 @@
     outs = [
         "version.txt",
     ],
-    cmd = "find -name stable-status.txt -exec cat '{}' ';' | grep EMBED_LABEL | cut -d ' ' -f 2- > $@\n",
+    cmd = "find . -name stable-status.txt -exec cat '{}' ';' | grep EMBED_LABEL | cut -d ' ' -f 2- > $@\n",
     stamp = 1,
 )