wordexp IFS fixes

[Ulrich Drepper]

Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> writes:

> Did you try this:
> 
> 	IFS=:; set :abc:
> 
> or this:
> 
> 	IFS=:; foo=:abc:; set $foo
> ?

No, I tried the wordexp() function on all these platforms.  I haven't
tried the shell.

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