BUG #4344: initdb -L timezone directory

The following bug has been logged online:

Bug reference:      4344
Logged by:          Domingo Alvarez Duarte
Email address:      mingodad@gmail.com
PostgreSQL version: 8.3.3
Operating system:   windows
Description:        initdb -L timezone directory
Details:

When specifing a non default location for input files to initialize the
database cluster with the "-L" option this option is not transfered to
timezone functions and initdb fail because it tries to find timezone files
in the hardcoded path settings done at compile time
"/usr/local/share/timezone" for example.

I expected initdb to use "-L" value to timezone too and for all other files
that is expected to be on share directory.