+Time : 0.031084 seconds
+Considered : 121
+Hashed : 45
+Skipped due to 0 size : 2
+Skipped due to unique size : 74
+Ignored due to regex match : 0
+
+```
+Note that the report lines are written to `stderr`, so that `stdout` is safely
+processable by other tools:
+
+```
+$ ./dups . 2> /dev/null
+e40e3c4330857e2762d043427b499301 2