Backport of Fix docs for log file name changes into release/1.15.x #8837

Job	Run time
Get files changed and conditionally skip CI	32s
noop	4s
Setup	0s
check-generated-protobuf	0s
check-go-mod	0s
check-generated-deep-copy	0s
lint-container-test-deps	0s
lint-consul-retry	0s
lint-enums	0s
dev-build	0s
lint-32bit	0s
lint	0s
go-test-race	0s
go-test-enterprise	0s
go-test-ce	0s
go-test-32bit	0s
go-test-troubleshoot	0s
go-test-envoyextensions	0s
go-test-api-1-19	0s
go-test-api-1-20	0s
go-test-sdk-1-19	0s
go-test-sdk-1-20	0s
go-tests-success	0s
	36s

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