mod_unique_id parser must support both 19 and 24 chars. about logparser

[nielsbasjes]

http://www.somacon.com/p446.php

If Apache 1.3 does not have MULTITHREAD defined in the build options (found by running httpd -V),
it will produce 19 characters. In Apache 2.0+, multi-threading is part of the core. Thus, the old
structure is 112 bits (divide by 6 to get psuedo-UUencoded base64 value), or 19 characters. The 
new structure (or the old one with multi-threading) is 144 bits, which translates to 24 characters. 
Therefore, in all 2.0+ versions of Apache on typical 32-bit systems, the UniqueID will be 24 
characters. However, it will still vary based on the size of integral types on the host system.

[nielsbasjes]

This only applies to versions of Apache that are more than 17 years old:
https://svn.apache.org/viewvc?view=revision&revision=83789

Won't fix.