Quick and dirty malloc() support for realpath.

[Bernhard Reutner-Fischer]

On Wed, Oct 28, 2009 at 12:19:44PM -0500, Rob Landley wrote:
>Please read the patch I submitted.
>
>@@ -168,5 +172,6 @@
>                new_path--;
>        /* Make sure it's null terminated. */
>        *new_path = '\0';
>+       if (allocated) got_path = strdup(got_path);

please follow the established coding-style in this file, i.e. break
the above in two lines, one for "if" and one for the rest (if the rest
fits into 80 chars).