Merge branch 'collectd-5.4' into collectd-5.5

diff --cc configure.ac
Simple merge

diff --cc src/daemon/configfile.c
Simple merge

diff --cc src/statsd.c
Simple merge

diff --cc src/tcpconns.c
Simple merge

diff --cc src/utils_dns.c
Simple merge

diff --cc src/vmem.c
Simple merge