[m-rev.] for review: make some io procedures return "" instead of NULL

[Julien Fischer]

On Fri, 20 May 2005, Ian MacLarty wrote:

> On Fri, 20 May 2005, Julien Fischer wrote:
>
> >
> > On Thu, 19 May 2005, Ian MacLarty wrote:
> > > Index: library/io.m
> > > ===================================================================
> >
> > That's fine except that I think you should put a brief comment
> > at each of those three spots explaining why "" is returned rather
> > than NULL.
> >
> How about:
> 		/*
> 		** Return a real string, otherwise mdb will break when it tries
> 		** to print the string.
> 		*/
or:
	We can't just return NULL here, because otherwise mdb will break
	when it tries to print the string.

Julien.

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