Update ignoreComment to check line prefixes
Update ignoreComment to check line prefixes

Allows the exclusions to be more accurate. The previous method with
contains sometimes removed required lines from the headers.

Signed-off-by: Thanh Ha <ddef40ffcf330e0c1e91b15bb1b0d4953f1680d8@linux.com>

zxiiro/license-header-checker