[NaCl SDK] Fix bug in "naclsdk update", updating recommended bundles.

native_client_sdk/src/build_tools/sdk_tools/command/update.py

Index: native_client_sdk/src/build_tools/sdk_tools/command/update.py
diff --git a/native_client_sdk/src/build_tools/sdk_tools/command/update.py b/native_client_sdk/src/build_tools/sdk_tools/command/update.py
index 7fa9066cd98cec73355185f58fd8110742817715..3ae4f0d46aed9509bb37b98fc58ad9d1761c5fb7 100644
--- a/native_client_sdk/src/build_tools/sdk_tools/command/update.py
+++ b/native_client_sdk/src/build_tools/sdk_tools/command/update.py
@@ -212,8 +212,11 @@ def _GetRequestedBundleNamesFromArgs(remote_manifest, requested_bundles):
 
 
 def _GetRecommendedBundleNames(remote_manifest):
-  return [bundle.name for bundle in remote_manifest.GetBundles() if
-      bundle.recommended]
+  result = []
+  for bundle in remote_manifest.GetBundles():
+    if bundle.recommended == 'yes' and bundle.name != SDK_TOOLS:
+      result.append(bundle.name)
+  return result
 
 
 def _BundleNeedsUpdate(delegate, local_manifest, bundle):