out_stackdriver: test_log_entry_format will output log entries to stdout #8367

Job	Run time
run-ubuntu-unit-tests (-DFLB_JEMALLOC=On, gcc)	12m 24s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=On, clang)	12m 55s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=Off, gcc)	11m 40s
run-ubuntu-unit-tests (-DFLB_JEMALLOC=Off, clang)	12m 13s
run-ubuntu-unit-tests (-DFLB_SMALL=On, gcc)	11m 44s
run-ubuntu-unit-tests (-DFLB_SMALL=On, clang)	12m 25s
run-ubuntu-unit-tests (-DSANITIZE_ADDRESS=On, gcc)	11m 49s
run-ubuntu-unit-tests (-DSANITIZE_ADDRESS=On, clang)	11m 55s
run-ubuntu-unit-tests (-DSANITIZE_UNDEFINED=On, gcc)	11m 50s
run-ubuntu-unit-tests (-DSANITIZE_UNDEFINED=On, clang)	12m 26s
run-ubuntu-unit-tests (-DFLB_COVERAGE=On, gcc)	42m 46s
run-ubuntu-unit-tests (-DFLB_SANITIZE_MEMORY=On, gcc)	11m 54s
run-ubuntu-unit-tests (-DFLB_SANITIZE_MEMORY=On, clang)	11m 41s
run-ubuntu-unit-tests (-DFLB_SANITIZE_THREAD=On, gcc)	12m 11s
run-ubuntu-unit-tests (-DFLB_SANITIZE_THREAD=On, clang)	11m 50s
run-macos-unit-tests (-DFLB_JEMALLOC=Off)	10m 0s
run-macos-unit-tests (-DFLB_SANITIZE_MEMORY=On)	9m 56s
run-macos-unit-tests (-DFLB_SANITIZE_THREAD=On)	10m 17s
Unit tests (matrix)	1s
	4h 1m 57s

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