tzcode1998g.tar.gz and tzdata1998h.tar.gz

The files ftp://elsie.nci.nih.gov/pub/tzcode1998g.tar.gz and ftp://elsie.nci.nih.gov/pub/tzdata1998h.tar.gz are now available. These files contain the changes circulated by Paul Eggert on the time zone mailing list; there's also a correction to a define in the "private.h" file. --ado