bug#21526: 24.5; prolog-mode: broken indentation for if-then-else construct

[Stefan Monnier]

> +    ;; directives declaring predicate properties

Please capitalize and punctuate comments.

> +    ("discontiguous" -1150 -1150)
> +    ("dynamic" -1150 -1150)
> +    ("meta_predicate" -1150 -1150)
> +    ("module_transparent" -1150 -1150)
> +    ("multifile" -1150 -1150)
> +    ("public" -1150 -1150)

IIUC these are all prefix, so I think it'd be better to write them as

       ("foo" nil -1150)

Other than that, looks good, please install.


-- Stefan