Fix home creation

src/memberdb/account_backend.py

@@ -276,7 +276,7 @@ def make_home(formdata, member):
 
 	user = member.username
 	mail = formdata['email_address'] if formdata['forward'] else ""
-	result = subprocess.call(make_home_cmd + [user, mail])
+  result = subprocess.run(make_home_cmd + [user, mail])
 	if result == 0:
 		return True
 	else: