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From: Francesco Potorti` <pot@gnu.org>
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Subject: Re: man page prompter thinks "|" is legitimate
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> >>         Manual entry (default sort|uniq):
> >> Why, that's ridiculous.  How could a potential man page have a | in
> $$ ls
> filename|including|vbars
> vertical-bar *is* a legitmate filename character under UNIX.  

If I am not wrong, all characters are legitimate in file names under
Unix, apart from the slash.  This does not mean that it is reasonable to
assume that all characters are likely to be found in man page names.

The `|' character should be removed, and the `:' character added.  The
latter is used in Perl man pages.