"OODLE USAGE WARNING : Destination buffer appears to be in uncached or write-combined memory!" when running on Linux with -fileopenlog

[mikeroberts3000]

Running with -fileopenlog on Linux produces many of these warnings:

OODLE USAGE WARNING : Destination buffer appears to be in uncached
or write-combined memory! This is extremely slow. See "How do I
decompress to graphics memory quickly?" in the Oodle FAQ.
(Usage warnings can be disabled via Oodle_SetUsageWarnings.)

But -fileopenlog seems like a useful option that we want to leave on:

https://docs.unrealengine.com/5.2/en-US/packaging-unreal-engine-projects