[PATCH 2/3] tzset.3: There are only two TZ formats

[J William Piggott <elseifthen-KK0ffGbhmjU@public.gmane.org>]

tzset(3) currently states that there are three TZ formats. The
first two it lists are actually variations of the POSIX-style
TZ format, of which there are at least five variations.

This patch corrects this to match the POSIX specification of
TZ having only two formats.

http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html

Signed-off-by: J William Piggott <elseifthen-KK0ffGbhmjU@public.gmane.org>
---
 man3/tzset.3 | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/man3/tzset.3 b/man3/tzset.3
index ed7f406..8002ee5 100644
--- a/man3/tzset.3
+++ b/man3/tzset.3
@@ -90,12 +90,12 @@ below, Coordinated Universal Time (UTC) is used.
 .PP
 The value of
 .B TZ
-can be one of three formats.
-The first format is used
-when there is no daylight saving time in the local timezone:
+can be one of two formats.
+The first format is a string of characters that directly represent the
+timezone to be used:
 .sp
 .RS
-.I std offset
+.RI stdoffset[ dst [ offset ][, start [ /time ], end [ /time ]]]
 .RE
 .sp
 There are no spaces in the specification.
@@ -110,15 +110,6 @@ east.
 The hour must be between 0 and 24, and the minutes and seconds
 0 and 59.
 .PP
-The second format is used when there is daylight saving time:
-.sp
-.RS
-.RI stdoffset[ dst [ offset ][, start [ /time ], end [ /time ]]]
-.RE
-.sp
-There are no spaces in the specification.
-The initial \fIstd\fP and
-\fIoffset\fP specify the standard timezone, as described above.
 The \fIdst\fP string and \fIoffset\fP specify the name and offset for the
 corresponding daylight saving timezone.
 If the offset is omitted,
@@ -161,7 +152,7 @@ and the changeovers happen at the default time of 02:00:00:
     TZ="NZST-12:00:00NZDT-13:00:00,M10.1.0,M3.3.0"
 .fi
 .PP
-The third format specifies that the timezone information should be read
+The second format specifies that the timezone information should be read
 from a file:
 .sp
 .RS
@@ -175,7 +166,7 @@ If \fIfilespec\fP is given, it specifies another
 file to read the timezone information from.
 If \fIfilespec\fP does not begin with a \(aq/\(aq, the file specification is
 relative to the system timezone directory.  If the colon is omitted each
-of the above three \fBTZ\fP formats will be tried in order.
+of the above \fBTZ\fP formats will be tried.
 .PP
 Here's an example, once more for New Zealand:
 .nf
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