[m-rev.] Fix a pretty_printer bug

[Julien Fischer]

On Fri, 24 Aug 2007, Ralph Becket wrote:

> Estimated hours taken: 1
> Branches: main
>
> library/pretty_printer.m:
> 	The depth limit was being prematurely decremented when formatting
> 	terms, causing one too few functors to be displayed before
> 	truncation.  This bug caused everything to be printed as "..."
> 	at depth 1, rather than just showing the top-level functor.
>
> tests/debugger/browse_pretty.exp:
> tests/debugger/browser_test.exp3:
> tests/debugger/declarative/sort.exp:
> tests/hard_coded/test_pretty_printer.exp:
> tests/hard_coded/test_pretty_printer_defaults.exp:
> 	Update expected output files.
>
> tests/hard_coded/test_pretty_printer.m:
> 	Test the depth=1 case.

Could you please commit this.

Julien.
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