rcutorture: Make test output less chatty

This commit drops no-longer-needed diagnostics from the output.  Some of
them are retained in logfiles, in case they are ever needed.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh
index 618aa4d..5526550 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh
@@ -62,7 +62,7 @@
 fi
 cp $config_template $resdir/ConfigFragment
 echo ' ---' `date`: Starting build
-echo ' ---' Kconfig fragment at: $config_template
+echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
 cat << '___EOF___' >> $T
 CONFIG_RCU_TORTURE_TEST=y
 ___EOF___