SkSL workaround for appendf 1024 byte restriction

Bug: skia:
Change-Id: Ibb04e032e27e834b5e3e40c40522e756223f58ec
Reviewed-on: https://skia-review.googlesource.com/59680
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2 files changed