quiet down CVS ouput
diff --git a/releng.control/commonVariations.shsource b/releng.control/commonVariations.shsource
index 3825fa5..5496fb9 100644
--- a/releng.control/commonVariations.shsource
+++ b/releng.control/commonVariations.shsource
@@ -35,4 +35,9 @@
 
 # for  builds on local machines, SKIPUSERS should be 'true' to avoid 
 # notifying users about those builds on your local machine
-export SKIPUSERS=false
\ No newline at end of file
+export SKIPUSERS=false
+
+# normally, cvs logging output can be "really quiet", but if problems, then it can be turned back on 
+# to get more potentially diagnostic information
+export CVS_QUIET=true
+export CVS_REALLY_QUIET=true