diff --git a/bin/roundtrip-test.js b/bin/roundtrip-test.js
index <HASH>..<HASH> 100755
--- a/bin/roundtrip-test.js
+++ b/bin/roundtrip-test.js
@@ -530,8 +530,8 @@ var checkIfSignificant = function(offsets, data) {
 				thisResult.wtDiff = formatDiff(oldWt, newWt, offset, 25);
 
 				// Don't clog the rt-test server db with humongous diffs
-				if (diff.length > 2000) {
-					diff = diff.substring(0, 2000) + "-- TRUNCATED TO 2000 chars --";
+				if (diff.length > 1000) {
+					diff = diff.substring(0, 1000) + "-- TRUNCATED TO 1000 chars --";
 				}
 				thisResult.htmlDiff = diff;
 			}
roundtrip-test.js: Truncate diffs to <I> chars instead of <I>

* This reduces db bloat from storing test results.
* Only a tiny fraction of test results (<I> in <I>K) are looked at.

Change-Id: Ia<I>d<I>e<I>b<I>d0d0d<I>ae<I>b<I>a<I>c