[tz] Rule ChileAQ in antarctica

[yoshito_umaoka at us.ibm.com]

Zone Antarctica/Palmer is currently defined as -

# Zone  NAME            GMTOFF  RULES   FORMAT  [UNTIL]
Zone Antarctica/Palmer  0       -       zzz     1965
                        -4:00   ArgAQ   AR%sT   1969 Oct 5
                        -3:00   ArgAQ   AR%sT   1982 May
                        -4:00   ChileAQ CL%sT

The comment mentions that Palmer station keeps the same time as Punta 
Arenas, Chile.

# From Ethan Dicks (1996-10-06):
# It keeps the same time as Punta Arenas, Chile, because, just like us
# and the South Pole, that's the other end of their supply line....
# I verified with someone who was there that since 1980,
# Palmer has followed Chile.  Prior to that, before the Falklands War,
# Palmer used to be supplied from Argentina.

The rule ChileAQ in antarctica was copied from southamerica file and the 
current effective rules are below -

Rule    ChileAQ 1999    max     -       Oct     Sun>=9  4:00u   1:00    S
Rule    ChileAQ 2000    max     -       Mar     Sun>=9  3:00u   0       -

However, Rule Chile in southamerica was updated in 2008a, 2010d, 2011c and 
2011e. The rules for Chile after 1999 are defined as below in the current 
version.

Rule    Chile   1999    2010    -       Oct     Sun>=9  4:00u   1:00    S
Rule    Chile   2011    only    -       Aug     Sun>=16 4:00u   1:00    S
Rule    Chile   2012    max     -       Oct     Sun>=9  4:00u   1:00    S
Rule    Chile   2000    2007    -       Mar     Sun>=9  3:00u   0       -
# N.B.: the end of March 29 in Chile is March 30 in Universal time,
# which is used below in specifying the transition.
Rule    Chile   2008    only    -       Mar     30      3:00u   0       -
Rule    Chile   2009    only    -       Mar     Sun>=9  3:00u   0       -
Rule    Chile   2010    only    -       Apr     Sun>=1  3:00u   0       -
Rule    Chile   2011    only    -       May     Sun>=2  3:00u   0       -
Rule    Chile   2012    max     -       Mar     Sun>=9  3:00u   0       -

If the comment for Antarctica/Palmer is still true, then I think ChileAQ 
in antarctica should be also updated. Does anyone know if ChileAQ in 
antarctica was intentionally unchanged or, it's just an error?


Thanks,
Yoshito
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