Prepare release

Author: sebastianbergmann

ChangeLog-7.3.md

@@ -2,7 +2,7 @@
 
 All notable changes of the PHPUnit 7.3 release series are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
 
-## [7.3.1] - 2018-MM-DD
+## [7.3.1] - 2018-08-07
 
 ### Changed
 

src/Runner/Version.php

@@ -30,7 +30,7 @@ public static function id(): string
         }
 
         if (self::$version === null) {
-            $version       = new VersionId('7.3.0', \dirname(__DIR__, 2));
+            $version       = new VersionId('7.3.1', \dirname(__DIR__, 2));
             self::$version = $version->getVersion();
         }