updated strftime.c

An updated draft strftime.c, with changes from Bradley White (bww+@transarc.com) to avoid problems on multiprocessor systems, is available for anonymous ftp from elsie.nci.nih.gov (128.231.16.1) in the "pub" directory, file "draft-strftime.c". As Bradley noted in correspondence, it also: - removes _conv()'s static [non-const] buffer - corrects a problem with _conv() most easily seen with "%k" when tm_hour == 0 - can use the first char of _conv()'s new, non-static buffer - eliminates _conv()'s ASCII dependency - adds a missing _fmt()-parameter in the "%v" case (I've reformatted "strftime.c" just slightly from what bww sent me.) Again, any and all feedback is welcome; correspondence might best be sent to tz@elsie.nci.nih.gov. --ado