binfmt_misc overrides shebang now

[andersk]

   scripts / sql-signup / andersk  15:37  (Anders Kaseorg)
       Wait, when did binfmt_misc start overriding shebang lines?
   scripts / sql-signup / quentin  15:39  (Quentin Smith)
       It did?
   scripts / sql-signup / andersk  15:40  (Anders Kaseorg)
       [andersk@bees-knees]:~/web_scripts$ cat test.php
       #!/bin/cat
       hello
       [andersk@bees-knees]:~/web_scripts$ ./test.php
       X-Powered-By: PHP/5.2.9
       Content-type: text/html
   
       hello
   scripts / sql-signup / mitchb  15:41  (Yum, this spam is fresh!)
       That's kind of awesome.  The binfmt_misc magic still kind of confuses
       me.
   scripts / sql-signup / andersk  15:41  (Anders Kaseorg)
       That’s really bad.  Unless it’s configurable, we should get rid of
       the .php binfmt (since I think we aren’t using it), and deprecate and
       remove the .pl and .py binfmts as soon as we can.

Also, we should be recognizing Mono applications by magic number (MZ) and not extension (.exe), ​as described here.

[andersk]

Fixed in r1357.