* stable-5.1:
Bazel: Use hyphen instead of underscore in external repository names
Bazel: Format all build files with buildifier 0.15.0
ChangeIdUtilTest: Remove unused notestCommitDashV
Change-Id: Ie9d77a7716591246b87fb59ac85214417fe8309d Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>