Merge pull request #310 from CESNET/v5.4.0 #333

Job	Run time
check / clang-checks	1m 12s
check / editor-config	7s
build-os-matrix	2s
make-tests (oraclelinux:10) / tests	1m 30s
rpm-build (oraclelinux:10) / rpm-build	5m 12s
build (oraclelinux:10) / build	1m 51s
ipfix-elements-check / ipfix-elements-checks	17s
rpm-install (oraclelinux:10) / rpm-install	55s
	11m 6s

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