fix skslc splitting escape sequences in half

Bug: skia:
Change-Id: I810c4e77664bffb711969fb513f396646972f66e
Reviewed-on: https://skia-review.googlesource.com/65100
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
1 file changed