Keith Packard authored Oct 29, 2018 and Akira TAGOH committed Apr 03, 2019

On a file system with one-second time stamps, extra delays are needed
between cache modification operations to ensure that fontconfig isn't
fooled.

And, when the timestamps are checked correctly, we need to make sure
that FcConfigUptoDate returns false whenever we change a font
directory, so separate that out from the call to reinitialize the core
config.

Signed-off-by: Keith Packard <keithp@keithp.com>