Regenerate NOTICE files.

Also clean up some near-miss copyright headers in libm, and remove
some cruft in <grp.h>/<pwd.h> that the script can't automatically
ignore since we stripped all the tabs in those files.

Change-Id: I10796c54dda1ceba87822ae0de26b5d71b54972b
diff --git a/libm/arm64/fma.S b/libm/arm64/fma.S
index e64e807..1a8a158 100644
--- a/libm/arm64/fma.S
+++ b/libm/arm64/fma.S
@@ -1,11 +1,11 @@
 /*
- * Copyright 2015, The Android Open Source Project
+ * Copyright (C) 2015 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,