ITS#9354 - Fix usage of signal to be portable

3 jobs for its9354 in 25 minutes and 2 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
passed #2641
build-gnutls-mit

00:24:45

passed #2639
build-no-threads-no-slapd

00:02:32

passed #2640
build-openssl-heimdal

00:25:02