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doc: fix list of GNU extension date formats

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I didn't check how long these were documented as GNU extensions,
nor when they were added by POSIX; but since they are all part
of POSIX 2008, we no longer need call them out as extensions.

The next version of POSIX will standardize %s:
http://austingroupbugs.net/view.php?id=169
but as that is not out yet, I didn't change %s.

* doc/coreutils.texi (Time conversion specifiers): %R and %z are
now POSIX.
(Date conversion specifiers): Likewise for %F, %g, %G.
This commit is contained in:
Eric Blake
2011-12-01 12:09:41 -07:00
parent 8df7652cfa
commit 01fc9e146c
1 changed files with 0 additions and 5 deletions
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doc/coreutils.texi
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@@ -13959,7 +13959,6 @@ This is a @acronym{GNU} extension.
locale's 12-hour clock time (e.g., @samp{11:11:04 PM})
@item %R
24-hour hour and minute. Same as @samp{%H:%M}.
This is a @acronym{GNU} extension.
@item %s
@cindex epoch, seconds since
@cindex seconds since the epoch
@@ -13983,7 +13982,6 @@ appropriate for the current time, using the time zone rules specified
by the @env{TZ} environment variable.
The time (and optionally, the time zone rules) can be overridden
by the @option{--date} option.
This is a @acronym{GNU} extension.
@item %:z
@w{@acronym{RFC} 3339/@acronym{ISO} 8601} style numeric time zone with
@samp{:} (e.g., @samp{-06:00} or @samp{+05:30}), or nothing if no time
@@ -14040,14 +14038,12 @@ full date in @acronym{ISO} 8601 format; same as @samp{%Y-%m-%d}.
This is a good choice for a date format, as it is standard and
is easy to sort in the usual case where years are in the range
0000@dots{}9999.
This is a @acronym{GNU} extension.
@item %g
year corresponding to the @acronym{ISO} week number, but without the century
(range @samp{00} through @samp{99}). This has the same format and value
as @samp{%y}, except that if the @acronym{ISO} week number (see
@samp{%V}) belongs
to the previous or next year, that year is used instead.
This is a @acronym{GNU} extension.
@item %G
year corresponding to the @acronym{ISO} week number. This has the
same format and value as @samp{%Y}, except that if the @acronym{ISO}
@@ -14057,7 +14053,6 @@ instead.
It is normally useful only if @samp{%V} is also used;
for example, the format @samp{%G-%m-%d} is probably a mistake,
since it combines the ISO week number year with the conventional month and day.
This is a @acronym{GNU} extension.
@item %h
same as @samp{%b}
@item %j