That one Notepad feature - for GNU Emacs.
logpad.el is available on MELPA.
(logpad-mode) and GNU Emacs will check for the magic
.LOG line whenever you open a text file. For your convenience, this is only happening for new buffers, existing buffers won't be touched.
logpad.el is free software by the terms of the WTFPL. As some people - including myself - like to contribute money for a good cause anyway, here are two possible options for you:
Donate money to the nature:
Donate money to me:
Yes, I like money as well.