NfbPlugin: replace numa_bind with numa_set_preferred for flexible mem… #240

Job	Run time
check / clang-checks	1m 41s
check / editor-config	7s
build-os-matrix	2s
rpm-build (oraclelinux:9) / rpm-build	5m 43s
make-tests (oraclelinux:9) / tests	1m 46s
build (oraclelinux:9) / build	2m 6s
ipfix-elements-check / ipfix-elements-checks	39s
rpm-install (oraclelinux:9) / rpm-install	1m 17s
	13m 21s

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