Land rapid7#9273, add authors to osx local root exploit

Author: busterb

modules/exploits/osx/local/root_no_password.rb

@@ -26,6 +26,11 @@ def initialize(info={})
         ],
       'Platform'      => 'osx',
       'Arch'          => ARCH_X64,
+      'Author'         => [
+        'chethan177',  # earliest public discovery
+        'lemiorhan',   # making this well-known via Twitter
+        'timwr',       # Metasploit module
+      ],
       'DefaultOptions' =>
       {
         'PAYLOAD'      => 'osx/x64/meterpreter_reverse_tcp',