Doc: CG: add warning about test-output-distance.

This duplicates the later warning, but we need it at that point
for Bug Squad people.

diff --git a/Documentation/contributor/regressions.itexi b/Documentation/contributor/regressions.itexi
index 70fbcf18a2f4e7e2e9c97126be8f33f6933d028a..e1bbe3d464579e3f7706a354b2ae0aa00d38a949 100644 (file)
--- a/Documentation/contributor/regressions.itexi
+++ b/Documentation/contributor/regressions.itexi
@@ -85,6 +85,12 @@ You are invited to report anything that looks broken, or any case
 where the output quality is not on par with the previous release,
 as described in @rweb{Bug reports}.
 
+@warning{ The special regression test
+@file{test@/-output@/-distance@/.ly} will always show up as a
+regression.  This test changes each time it is run, and serves to
+verify that the regression tests have, in fact, run.}
+
+
 @subheading What to look for
 
 The test comparison shows all of the changes that occurred between