Fix buffer overflow in SamplePathText

Bug: skia:6764
Change-Id: If0b9dba6e2bbd15ab7d94e271a0c577ca5fcf729
Reviewed-on: https://skia-review.googlesource.com/20021
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
1 file changed