+2002-02-14 Paul Eggert <eggert@twinsun.com>
+
+ Add support for POSIX 1003.1-2001, which requires removal for
+ support of obsolete "+" option syntax in sort, tail, and uniq.
+
+ * NEWS: Document this.
+
+ * src/sort.c (usage, main): Implement this.
+ * src/tail.c (usage, parse_obsolescent_option): Likewise.
+ * src/uniq.c (usage, main): Likewise.
+ * src/system.h (_POSIX2_VERSION, POSIX2_VERSION): New macros.
+
2002-01-14 Jim Meyering <meyering@lucent.com>
* Version 2.0.20.