diff --git a/patchutil/combinediff.go b/patchutil/combinediff.go
--- a/patchutil/combinediff.go
+++ b/patchutil/combinediff.go
@@ -119,7 +119,7 @@
 			// we have f1 and f2, combine them
 			combined, err := combineFiles(f1, f2)
 			if err != nil {
-				fmt.Println(err)
+				// fmt.Println(err)
 			}
 
 			// combined can be nil commit 2 reverted all changes from commit 1