base-files patch

[Eric Blake]

> On Fri, 25 Mar 2005, Eric Blake wrote (snipped):
> 
> 
> Most shells understand "`""`" (particularly, all official shells on
> Cygwin, which is what's important).

True enough, and I concede that POSIX requires it to work.

>  In fact, in this particular case,
> it's probably better to use "``" instead of `""`, IMO.

No, "`echo $0|tr ...`" does the wrong thing if $0 is "two  spaces/sh" (it passes just one space to tr, instead of two), while `echo "$0"|tr ...` works correctly.



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