ktest: Clarify config file usage

Simply telling a new user to edit "the config file" without giving any
hints on where that file should go, what it should be named, or where
a template can be found, is not particularly helpful.

Link: http://lkml.kernel.org/r/20170717001630.10518-1-swood@redhat.comSigned-off-by: NScott Wood <swood@redhat.com>
Signed-off-by: NSteven Rostedt (VMware) <rostedt@goodmis.org>

tools/testing/ktest/ktest.pl

@@ -1143,7 +1143,8 @@ sub __read_config {
 sub get_test_case {
 	print "What test case would you like to run?\n";
 	print " (build, install or boot)\n";
-	print " Other tests are available but require editing the config file\n";
+	print " Other tests are available but require editing ktest.conf\n";
+	print " (see tools/testing/ktest/sample.conf)\n";
 	my $ans = <STDIN>;
 	chomp $ans;
 	$default{"TEST_TYPE"} = $ans;

tools/testing/ktest/sample.conf

 #
 # Config file for ktest.pl
 #
+# Place your customized version of this, named ktest.conf, in the
+# working directory that ktest.pl is run from.
+#
 # Note, all paths must be absolute
 #