message: Fix an error prone warning.
diff: @@ -648,12 +648,11 @@ public final class Registry {
  return b.toString();
  }
  - @SuppressWarnings("unchecked")
  private static <P> KeyManager<P> getKeyManagerInternal(String typeUrl, Class<P> primitiveClass)
  throws GeneralSecurityException {
  KeyManagerContainer container = getKeyManagerContainerOrThrow(typeUrl);
  if (primitiveClass == null) {
  - @SuppressWarnings("Unchecked") // Only called from deprecated functions; unavoidable there.
  + @SuppressWarnings("unchecked") // Only called from deprecated functions; unavoidable there.
  KeyManager<P> result = (KeyManager<P>) container.getUntypedKeyManager();
  return result;
  }
  