pts-core: Workaround Ubuntu 22.04 apt-get crashing the entire process…

… on dependency installation

pts-core/external-test-dependencies/scripts/install-ubuntu-packages.sh

@@ -1,7 +1,12 @@
 #!/bin/sh
+
+# The < /dev/null hacks below added for Ubuntu 22.04 LTS...
+# Without them, after years of this script working fine, on Ubuntu 22.04 it manages to crash the entire PHP/PTS process...
+# Adding < /dev/null to the apt/apt-get lines seems to workaround this odd new issue on Ubuntu 22.04
+
 export DEBIAN_FRONTEND=noninteractive
 if [ `whoami` = "root" ] && [ ! -w /usr/bin/sudo ]; then
-	apt-get -y --ignore-missing install $*
+	apt-get -y --ignore-missing install $* < /dev/null
 elif [ `whoami` != "root" ] && [ ! -z "$DISPLAY" ]; then
 	if [ -x /usr/bin/gksudo ]; then
 		ROOT="/usr/bin/gksudo"
@@ -10,16 +15,10 @@ elif [ `whoami` != "root" ] && [ ! -z "$DISPLAY" ]; then
 	elif [ -x /usr/bin/sudo ]; then
 		ROOT="/usr/bin/sudo"
 	fi
-	$ROOT -- su -c "apt-get -y --ignore-missing install $*"
+	$ROOT -- su -c "apt-get -y --ignore-missing install $* < /dev/null"
 elif [ -z "$DISPLAY" ]; then
-	sudo -- apt-get -y --ignore-missing install $*
+	sudo -- apt-get -y --ignore-missing install $* < /dev/null
 else
-	su -c "apt-get -y --ignore-missing install $*"
+	su -c "apt-get -y --ignore-missing install $* < /dev/null"
 	exit
 fi
-
-# if [ -x /usr/bin/aptitude ]; then
-	# aptitude is nice since it doesn't fail if a non-existant package is hit
-	# See: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=503215
-#	$ROOT -- "aptitude -y install $*"
-#fi