uevent_sender: Retry sendmsg() on EAGAIN #1332

Job	Run time
OS (apt-docker.io/amd64/ubuntu:devel)	2m 21s
OS (apt-docker.io/i386/debian:testing)	2m 11s
OS (apt-docker.io/amd64/ubuntu:rolling)	2m 22s
OS (apt-docker.io/amd64/ubuntu:latest)	2m 12s
OS (dnf-registry.fedoraproject.org/fedora:rawhide)	2m 3s
OS (dnf-quay.io/centos/centos:stream10-development)	2m 14s
OS (apt-docker.io/amd64/debian:testing)	2m 24s
OS (alpine-docker.io/alpine)	36s
OS (dnf-registry.fedoraproject.org/fedora:latest)	2m 10s
OS (alpine@gudev-alpine, EXTRA_PACKAGES=libgudev-dev)	40s
OS (nix-docker.io/nixos/nix)	1m 12s
OS (alpine-docker.io/i386/alpine)	35s
OS (alpine@gudev-docker.io/alpine)	37s
OS (apt-docker.io/amd64/ubuntu:latest)	2m 5s
OS (apt-docker.io/amd64/ubuntu:devel)	2m 28s
OS (apt-docker.io/amd64/ubuntu:rolling)	2m 6s
OS (dnf-registry.fedoraproject.org/fedora:latest)	2m 13s
OS (apt-docker.io/i386/debian:testing)	2m 7s
OS (alpine-docker.io/alpine)	33s
OS (apt-docker.io/amd64/debian:testing)	2m 20s
OS (dnf-registry.fedoraproject.org/fedora:rawhide)	2m 15s
OS (alpine@gudev-alpine, EXTRA_PACKAGES=libgudev-dev)	38s
OS (alpine@gudev-docker.io/alpine)	33s
OS (alpine-docker.io/i386/alpine)	35s
OS (nix-docker.io/nixos/nix)	1m 8s
OS (dnf-quay.io/centos/centos:stream10-development)	2m 11s
	42m 49s

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