Test

HLS: Fix error when stream has extension. #4215 v5.0.217 v6.0.158 v7.0.19 #3641

Job	Run time
cygwin64-cache	1m 47s
multiple-arch-armv7	21m 59s
utest-regression-blackbox-test	8m 7s
multiple-arch-aarch64	22m 49s
fast	1s
cygwin64	15m 11s
build-centos7	4m 52s
build-ubuntu16	3m 4s
build-cross-aarch64	5m 4s
build-cross-arm	5m 17s
build-ubuntu18	3m 5s
build-ubuntu20	3m 35s
coverage	3m 41s
multiple-arch-amd64	2m 24s
test-done	0s
	1h 40m 56s

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