Fixing broken nacl toolchain references.

R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/1419813006 .

DEPS

diff --git a/DEPS b/DEPS
index 3ddc58f..b29ca13 100644
--- a/DEPS
+++ b/DEPS
@@ -313,8 +313,7 @@
     'pattern': '.',
     'action': [
         'python', 'src/build/download_nacl_toolchains.py',
-        '--packages', 'pnacl_newlib',
-        '--packages', 'pnacl_translator',
+        '--packages', 'pnacl_newlib,pnacl_translator',
         'sync', '--extract',
     ],
   },