03.05.2005 - fixing __FUNCTION__ usage in debug functions - newer gcc throws an error.
02.12.2002 - Markus Fischer's patch - mgstat now can read from stdin 
19.09.2001 - fixed entry processing bug if log entries had same day and month number
	but different years (setting cur_day in find_entry()). Removing few #ifdef DEBUG,
	added debug() function.

27.08.2001 - small chagnes to parsing routine

22.08.2001 - better handling of command line arguments
 
19.08.2001 - fixed errx issues under Solaris

28.07.2001 - added 'g' (gigabytes) to -f command line options.
	Added -q (quiet). Few changes to parsing routine.

17.07.2001 - new command line option: -f [b|k|m]
	Specify data count (bytes, kilobytes, megabytes)	

17.07.2001 - checking if output dir exists (and is directory) before analyzing log file.

16.07.2001 - Makefile.in and  READE fix,
	added -s command line options for server name - thanks to Jonathan Roy

04.07.2001 - mgstat ver. 0.5  displays statistics about all bytes sent and
	actual size of all objects, not just only compressable objects.
	Please note that if you use mgstat 0.5 with history file produced
	by earlier version then generated statistics could be incomplete.
	Thanks Rob for your suggestions and help!

22.04.2001 - in some cases line buffer in check_pos() was too small. In effect
 	log file was analyzed from the begining.