lit: Add --config-prefix option, to override default config file names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85035 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/CommandGuide/lit.pod b/docs/CommandGuide/lit.pod
index a818302..929aed7 100644
--- a/docs/CommandGuide/lit.pod
+++ b/docs/CommandGuide/lit.pod
@@ -49,6 +49,11 @@
Run I<N> tests in parallel. By default, this is automatically chose to match the
number of detected available CPUs.
+=item B<--config-prefix>=I<NAME>
+
+Search for I<NAME.cfg> and I<NAME.site.cfg> when searching for test suites,
+instead I<lit.cfg> and I<lit.site.cfg>.
+
=back
=head1 OUTPUT OPTIONS