tz code

re suddenly i stepped upon a time conversion code that is in use by the OpenBSD OS as a part of libc, i made a patch that would be good for systems w/ a smart (; malloc which can handle zero sized memory allocations, so that would be good to get rid of ialloc.c functions (what is done by this patch). that is in order to simplify future time conversion package integrations and to make this benefitiary for other systems using this package i'm asking you to include this patch in future releases. 10x cu