setup_rhodecode: fix --force-no - force_ask is tri-state

Missed in 260a7a01b.

rhodecode/lib/db_manage.py

@@ -67,12 +67,11 b' class DbManage(object):'
         self.db_exists = False
         self.cli_args = cli_args
         self.init_db()
-        global ask_ok
 
-        if self.cli_args.get('force_ask'):
-            ask_ok = lambda *args, **kwargs: True
-        elif not self.cli_args.get('force_ask'):
-            ask_ok = lambda *args, **kwargs: False
+        force_ask = self.cli_args.get('force_ask')
+        if force_ask is not None:
+            global ask_ok
+            ask_ok = lambda *args, **kwargs: force_ask
 
     def init_db(self):
         engine = create_engine(self.dburi, echo=self.log_sql)