Don't silent Exception in line_treat. Skip the treatment, but log.

nemubot/module/more.py

@@ -181,6 +181,7 @@ class Response:
                 return self.nomore
 
         if self.line_treat is not None and self.elt == 0:
+            try:
                 if isinstance(self.messages[0], list):
                     for x in self.messages[0]:
                         print(x, self.line_treat(x))
@@ -188,6 +189,8 @@ class Response:
                 else:
                     self.messages[0] = (self.line_treat(self.messages[0])
                                         .replace("\n", " ").strip())
+            except Exception as e:
+                logger.exception(e)
 
         msg = ""
         if self.title is not None: