bump linux to clang 8

Trimming a stray semicolon.

Change-Id: I31c33e4a9b88ee93fc31bd8a59a008bd1cc0cf89
Reviewed-on: https://skia-review.googlesource.com/c/skcms/+/202355
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
3 files changed