tree cd3adf09c5f6a858e89ae26d5f8882d856795593
parent 21ea1c91529471c05e03b6db61df256f24fa23c1
author Behdad Esfahbod <behdad@behdad.org> 1548971818 -0800
committer Behdad Esfahbod <behdad@behdad.org> 1548971837 -0800

Adjust hb_is_signed<>

Fixes https://github.com/harfbuzz/harfbuzz/issues/1535