rcutorture: Print dates when doing parallel rcutorture runs

# Dump out the scripting required to run one test batch.

function dump(first, pastlast)

{

	print "echo ----start batch----"

	print "echo ----Start batch: `date`"

	jn=1

	for (j = first; j < pastlast; j++) {

		builddir=KVM "/b" jn

			ovf = "(!)";

		else

			ovf = "";

		print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build.";

		print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date`";

		print "rm -f " builddir ".*";

		print "touch " builddir ".wait";

		print "mkdir " builddir " > /dev/null 2>&1 || :";

		print "mkdir " rd cfr[jn] " || :";

		print "kvm-test-1-rcu.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" RCU_QEMU_ARG "\" \"" RCU_BOOTARGS "\" > " builddir ".out 2>&1 &"

		print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete."

		print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date`"

		print "while test -f " builddir ".wait"

		print "do"

		print "\tsleep 1"

		print "done"

		print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete."

		print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date`"

		jn++;

	}

	for (j = 1; j < jn; j++) {

		builddir=KVM "/b" j

		print "rm -f " builddir ".ready"

		print "echo ----", cfr[j], cpusr[j] ovf ": Starting kernel"

		print "echo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date`"

	}

	print "wait"

	print "echo ---- All kernel runs complete"

	print "echo ---- All kernel runs complete. `date`"

	for (j = 1; j < jn; j++) {

		builddir=KVM "/b" j

		print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:"