help/dates: rephrase explanation of internal format
The old explanation referred to the two numbers as "unixtime" and
"offset" without really defining those terms.
--- a/mercurial/help/dates.txt Sun Apr 03 23:47:17 2011 +0900
+++ b/mercurial/help/dates.txt Tue Apr 05 10:04:19 2011 +0200
@@ -23,10 +23,10 @@
- ``1165432709 0`` (Wed Dec 6 13:18:29 2006 UTC)
-This is the internal representation format for dates. unixtime is the
-number of seconds since the epoch (1970-01-01 00:00 UTC). offset is
-the offset of the local timezone, in seconds west of UTC (negative if
-the timezone is east of UTC).
+This is the internal representation format for dates. The first number
+is the number of seconds since the epoch (1970-01-01 00:00 UTC). The
+second is the offset of the local timezone, in seconds west of UTC
+(negative if the timezone is east of UTC).
The log command also accepts date ranges: