On Jan 4, 2013 10:07 AM, "Richard Miller" <9fans@hamnavoe.com> wrote:
>
> > It contains the full file system from the Plan 9 CD image,
> > unmodified, except a single line change in the kernel binary.
>
> I can't contain my curiosity: what's the line?
>
> I once worked with a colleague who had a superstition that any
> one-line change to production software was almost certain to
> introduce a bug.  (Actually what he said was "one-card change",
> which indicates how long ago this was.)   If he had to make
> a modification simple enough to be done in one line, he would
> always combine it with some other random harmless change like
> renaming a variable.

It's funny, if you were correcting someone else's bug unknowingly
introduced by a one-line change your fix could justifiably be one line, but
then you would think the odds of it reoccurring in the future would be
non-zero, and you might as well add a comment for future fumblers. :)

-Jack