FIX: %lu printf code can't be used for size_t types on 32 bit

[redbaron]

C++ can't use %zu code which is standard for C99 and above, so I added CPP ifdefs to fix that printf

[bombela]

Damned me, I forgot to adjust all the size_t to unsigned. An unsigned can represent 4 billions of lines. I do make an assumption saying it is enough :P

Thus it's easier/more portable to simply rename all size_t used to represent lines to unsigned, because the printf argument will be valid by definition. Please tell me if you want to do it, or you prefer that I take care of it.

Thanks for contributing!

Best,
fx

[redbaron]

nah, I'll leave it to you ;)

[bombela]

Thanks to Kobolog for fixing the issue!