[PATCH 3/4] Add option to print the path used by pkg-config

[Tollef Fog Heen]

First, I'd like to apologise for taking forever to review this.

| The --list-path option provides a means to find out the current
| pkg-config search path. in search path being used by pkg-config is.

pkg-config already has --variable=pc_path pkg-config, and this seems to
just do the same, except use puts (and thereby giving you one path per
line instead of :-separated)?  If there's a demand for this, I'm willing
to consider it, but I'd rather not have multiple ways to do the same
thing if we can avoid it.

I don't think the internal variables are documented, so that should
probably be done anyway.

-- 
Tollef Fog Heen
UNIX is user friendly, it's just picky about who its friends are