Documentation Update

[David J. Haines]

Hi all,

When started interactively, bash sets the extglob shopt; however, that
fact seems to have been overlooked in the manpage. The behavior of bash
itself is great, but in the context of the manpage, it appears
erroneous, as it indicates that use of 'shopt' is necessary for extglob
to be enabled.

Likewise, hostcomplete seems to be disabled when bash is
non-interactive, which behavior is also not documented.

Perhaps a couple of small edits are in order?

All tbe best,

-- 
David J. Haines
djhaines@gmx.com
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