selftest: Clarify generation of idlist option.

diff --git a/selftest/selftest.pl b/selftest/selftest.pl
index b0296e1525c1741b6dd6175e46ee76189f39b9ac..7f5aa764f066ca3fd9302bb9bc731aac40260e3e 100755 (executable)
--- a/selftest/selftest.pl
+++ b/selftest/selftest.pl
@@ -944,6 +944,8 @@ $envvarstr
                        next;
                }
 
+               # Generate a file with the individual tests to run, if the 
+               # test runner for this test suite supports it.
                if ($$_[3] and $individual_tests and $individual_tests->{$name}) {
                        my ($fh, $listid_file) = tempfile(UNLINK => 0);
                        foreach (@{$individual_tests->{$name}}) {