Commits
![David Sterba](https://secure.gravatar.com/avatar/407c50e010f7ee5d7273ed7d28a82ebf.jpg?s=96&d=mm)
David Sterba committed 9888c3402c8
btrfs: replace GPL boilerplate by SPDX -- headers Remove GPL boilerplate text (long, short, one-line) and keep the rest, ie. personal, company or original source copyright statements. Add the SPDX header. Unify the include protection macros to match the file names. Signed-off-by: David Sterba <dsterba@suse.com>