Fix windows compile of log_msg_buffer.cpp #119

Job	Run time
build (Visual Studio 17 2022, Release, ON, ON, OFF, OFF, OFF, ON, 20)	2m 18s
build (Visual Studio 17 2022, Release, ON, ON, OFF, OFF, OFF, ON, 20)	2m 18s
build (Visual Studio 17 2022, Release, ON, ON, OFF, OFF, OFF, ON, 20)	2m 18s
build_2019 (Visual Studio 16 2019, Release, ON, ON, OFF, OFF, ON, OFF, 17)	1m 55s
build_2019 (Visual Studio 16 2019, Release, ON, ON, OFF, OFF, ON, OFF, 17)	2m 25s
build_2019 (Visual Studio 16 2019, Release, ON, ON, OFF, OFF, ON, OFF, 17)	1m 31s
build (Visual Studio 17 2022, Release, ON, ON, ON, ON, OFF, ON, 20)	2m 58s
build (Visual Studio 17 2022, Release, ON, ON, ON, ON, OFF, ON, 20)	2m 58s
build (Visual Studio 17 2022, Release, ON, ON, ON, ON, OFF, ON, 20)	2m 58s
build_2019 (Visual Studio 16 2019, Release, ON, ON, OFF, OFF, ON, OFF, 20)	1m 59s
build_2019 (Visual Studio 16 2019, Release, ON, ON, OFF, OFF, ON, OFF, 20)	1m 59s
build_2019 (Visual Studio 16 2019, Release, ON, ON, OFF, OFF, ON, OFF, 20)	1m 59s
build (Visual Studio 17 2022, Release, ON, ON, OFF, OFF, ON, OFF, 17)	1m 42s
build (Visual Studio 17 2022, Release, ON, ON, OFF, OFF, ON, OFF, 17)	1m 42s
build (Visual Studio 17 2022, Release, ON, ON, OFF, OFF, ON, OFF, 17)	1m 42s
	32m 42s

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