4401. [misc] Change LICENSE to MPL 2.0.
just use test -f
[master] fix skipping of Tinderbox files
[master] branchsync: don't update EXCLUDED
bind-changes -> bind-changes@isc.org (cherry picked from commit 0fe7a2f8745fc5f944e876833995c62125158258)
[master] don't sync api file changes (cherry picked from commit f2cb70f5d758495195ee53e593e75721bbbc80f0)
add copyright notice
[master] newline in echo isn't portable
[master] corrct author when cherry-picking
[master] silence unnecessary output
[master] add branchsync to util Script to sync release branch to subscription branch.