bug#12351: 24.1; parse-colon-path turns empty paths into nil

[Dave Abrahams <dave@boostpro.com>]

on Mon Dec 31 2012, Glenn Morris <rgm-AT-gnu.org> wrote:

> PS parse-colon-path is explicitly documented to return nils:
>
>  -- Function: parse-colon-path path
>      This function takes a search path string such as the value of the
>      `PATH' environment variable, and splits it at the separators,
>      returning a list of directory names.  `nil' in this list means the
>      current directory.  Although the function's name says "colon", it
>      actually uses the value of `path-separator'.
>
>           (parse-colon-path ":/foo:/bar")
>                => (nil "/foo/" "/bar/")
>
> The only use of parse-colon-path in "core" Emacs is in setting cd-path,
> which needs the nil, as we have seen.

OK, the docstring doesn't match the manual.

-- 
Dave Abrahams
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