Correct minor mistakes in code comments #3202

Job	Run time
GNU MSP430 Toolchain	1m 16s
GNU ARM Toolchain	1m 35s
Native GCC (ubuntu-latest)	1m 26s
GCC MicroBlaze Toolchain	5m 57s
CMake Example with Native GCC	22s
WIN32 MSVC	3m 27s
WIN32 MingW	3m 7s
Native GCC (macos-latest)	4m 5s
	21m 15s

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