a bunch of cleanups to the datetime stuff in irssi
removed the _get_day and _get_month functions and replaced them with a _get_day_and_month function
avoided a need for local time_t's and instead made the _get_day_and_month function return it
avoided allocating memory when it wasn't necessary
/* pre_config.h. Generated from pre_config.h.in by configure. */
/* pre_config.h.in. Generated from configure.ac by autoheader. */