Re: C file recoginzed as image file

[Richard Stallman]

    That wasn't sarcasm, it was indicating the result of using the magic
    number in preference to the filename without warning the user.

In nearly all cases, the result of displaying an image file is an
image on your screen.

Your conclusion is based on two assumptions: that (1) there is a bug
in a library and (2) the image file has a virus specifically designed
to take advantage of this bug and cause trouble in Emacs.

Assumption 1 may be true occasionally, but it will be false nearly
all the time.

Assumption 2 is not impossible, but we don't know that anyone will
actually do it.

Please don't assume that the unlikely case is the only case.