Warn about test failures due to setting FLOG* env vars

diff --git a/docs/logging.txt b/docs/logging.txt
index 2cf611b582b570972922ae9edf8ac4535fd79fa2..0cff1a78d689c6373fcf5f5a7bf079b7f1ec4ec4 100644 (file)
--- a/docs/logging.txt
+++ b/docs/logging.txt
@@ -224,6 +224,9 @@ but a few notes are worth stating here:
 
 == Log Messages During Unit Tests ==
 
+*** WARNING: setting the environment variables below may cause some tests to   ***
+*** fail spuriously. See ticket #923 for the status of a fix for this problem. ***
+
 If a test is failing and you aren't sure why, start by enabling
 FLOGTOTWISTED=1 like this: