Clarify wording in the light of later comments from the Open Group

and from rms.

diff --git a/old/textutils/NEWS b/old/textutils/NEWS
index a172299..92b2091 100644 (file)
--- a/old/textutils/NEWS
+++ b/old/textutils/NEWS
@@ -12,7 +12,8 @@ Changes in release 2.1
   dependent.  Set _POSIX2_VERSION=199209 to cause the utilities to support
   obsolete usage like "sort +1".
 * The following obsolete usages are no longer supported when conforming
-  to POSIX 1003.1-2001, which prohibits most digit-string options:
+  to POSIX 1003.1-2001, which (at the time this change was made) was thought
+  to say that implementations must reject most digit-string options:
     expand -N  (instead, use expand -t N)
     head -N    (instead, use head -c N or head -n N)
     fold -N    (instead, use fold -w N)
@@ -21,16 +22,18 @@ Changes in release 2.1
     unexpand -N        (instead, use unexpand --first-only -t N)
     uniq -N    (instead, use uniq -f N)
   The following obsolete usages (options without arguments) are no
-  longer supported when conforming to POSIX 1003.1-2001, which
-  prohibits most options with optional arguments:
+  longer supported when conforming to POSIX 1003.1-2001, which (at the
+  time this change was made) was thought to say that implementations must
+  reject options with optional arguments:
     od -s      (instead, use od --strings)
     od -w      (instead, use od --width)
     pr -S      (instead, use pr --sep-string)
 [2.0.20]
 * tr no longer gets failed a assertion for [==] or [::]
 * The following obsolete usages are no longer supported when conforming
-  to POSIX 1003.1-2001, which prohibits most options with leading "+":
-    sort +POS1 -POS2   (instead, use sort -k)
+  to POSIX 1003.1-2001, which says that arguments with leading "+"
+  are file names in these contexts:
+    sort +POS1         (instead, use sort -k)
     tail +N            (instead, use tail -c +N or tail -n +N)
     uniq +N            (instead, use uniq -s N)
 * Warnings are issued for obsolete usages on older hosts,