configd: roll back env(1) usage; FreeBSD's service(8)

refuses to take /usr/local/bin into account, which kind of defeats
the purpose of using the portable "env" command...

src/etc/rc.d/configd

@@ -24,7 +24,7 @@ configd_load_rc_config()
 	required_files=""
 	command_args="${required_args}"
 	command=/usr/local/opnsense/service/configd.py
-	command_interpreter="/usr/bin/env python2.7"
+	command_interpreter=/usr/local/bin/python2.7
 }
 
 #

src/opnsense/service/configd.py

-#!/usr/bin/env python2.7
+#!/usr/local/bin/python2.7
 """
     Copyright (c) 2014 Ad Schellevis
 

src/opnsense/service/configd_ctl.py

-#!/usr/bin/env python2.7
+#!/usr/local/bin/python2.7
 """
     Copyright (c) 2015 Ad Schellevis
 

src/opnsense/service/modules/daemonize.py

-#!/usr/bin/env python2.7
+#!/usr/local/bin/python2.7
 
 # original source from https://github.com/thesharp/daemonize