bug#40697: 25.3; sort-lines not accepting reverse parameter

[Eli Zaretskii <eliz@gnu.org>]

> From: Roland Hughes <roland@logikalsolutions.com>
> Date: Sat, 18 Apr 2020 13:45:17 -0500
> Cc: 40697@debbugs.gnu.org
> 
> Okay, I was not descriptive enough.
> 
> In interactive mode you cannot enter the argument but according to the 
> documentation I should be able to. To enter an argument I would have to 
> be able to use the space bar after entering sort-lines. When I try using 
> the spacebar I get [SoleCompletion] and no space. Cannot enter argument.

I modified the doc string to say this instead:

  Sort lines in region alphabetically; REVERSE non-nil means descending order.
  Interactively, REVERSE is the prefix argument, and BEG and END are the region.
  Called from a program, there are three arguments:
  REVERSE (non-nil means reverse order), BEG and END (region to sort).
  The variable ‘sort-fold-case’ determines whether alphabetic case affects
  the sort order.

Does this modified doc string resolve the issue you had?