$VAR1 = [
          'Only in test1/: different1',
          'Only in test2/: different2',
          'Only in test2//common: common.txt~',
          'Files test1//common/common.txt and test2//common/common.txt differ'
        ];
--- test1//common/common.txt    Wed Mar  8 11:41:08 2017
+++ test2//common/common.txt    Wed Mar  8 11:44:35 2017
@@ -1 +1 @@
-This is a common line
+This is a common line.