Fixed punctation and capitalization of grpc comments #4845

Job	Run time
run-determination	1s
package-name-prefix	1s
Create artifact Windows_X86-32	1m 0s
Create artifact Windows_X86-64	1m 3s
Create artifact Linux_X86-32	1m 6s
Create artifact Linux_X86-64	1m 10s
Create artifact Linux_ARMv6	58s
Create artifact Linux_ARMv7	59s
Create artifact Linux_ARM64	1m 0s
Create artifact macOS_64	1m 24s
Create artifact macOS_ARM64	1m 41s
Create artifact rpc-protocol-files	10s
Create artifact configuration-schema	11s
checksums	18s
	11m 2s

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