Major restructuring to switch build system from old scripts to GNU Automake.

tests/Display_-_--quiet.test

@@ -0,0 +1,19 @@
+#!/bin/sh
+#
+# Check that the -q option shuts everything up.
+
+# Dummy assignments for "shellcheck".
+testSubject="${testSubject:-false}"; workFile1="${workFile1:-.tmp1}"
+
+dd if=/dev/zero bs=1000 count=5 2>/dev/null \
+| "${testSubject}" -f -q -i 0.1 -L 5000 >/dev/null 2>"${workFile1}"
+
+if test -s "${workFile1}"; then
+	echo "output detected when there should be none"
+	cat "${workFile1}"
+	exit 1
+fi
+
+exit 0
+
+# EOF