fix leaked mmap

7 jobs for face_uncached_free_font_data in 6 minutes and 13 seconds (queued for 3 minutes and 2 seconds)
latest
Status Job ID Name Coverage
  Build
passed #7083178
build

00:05:54

passed #7083183
build_android

00:00:59

passed #7083179
build_clang_libcpp

00:03:34

passed #7083182
build_clazy

00:05:00

passed #7083181
build_mingw64_fedora

00:03:12

passed #7083180
build_ubuntu_16_04

00:03:25

passed #7083177
clang_format

00:02:05