Fix typo

Author: nicolas-grekas

bin/simple-phpunit

@@ -11,7 +11,7 @@
  */
 
 // Please update when phpunit needs to be reinstalled with fresh deps:
-// Cache-Id-Version: 2019-07-04 18:00 UTC
+// Cache-Id: 2019-08-09 13:00 UTC
 
 error_reporting(-1);