southamerica patches

[Paul Eggert]

Here is a proposed patch to tzdata95c's southamerica file.

Bolivia was omitted inadvertently from tzdata95c; this patch brings it back.

I wrote hernan at isoft.com.ar and suggested that the zone name be
changed back from `Argentina/Buenos_Aires' to `America/Buenos_Aires'
to stick with the current naming conventions, and that the time zone
abbreviation be changed from ARS/ARD to ARST/ARDT (by analogy with New
Zealand).  He wrote back that this seemed OK.  He hadn't known about
the zone naming conventions.

I also came up with a more compact representation of his fix,
updated some of the comments to match the recent changes,
and fixed the spacing.

===================================================================
RCS file: RCS/southamerica,v
retrieving revision 1995.3
retrieving revision 1995.3.1.1
diff -c -r1995.3 -r1995.3.1.1
*** southamerica	1995/07/02 23:19:24	1995.3
--- southamerica	1995/07/03 16:27:38	1995.3.1.1
***************
*** 14,30 ****
  # the rest are from earlier versions of this file, or from other sources.
  # Some of these are just plausible excuses for common English abbreviations.
  # Corrections are welcome!
! #		std dst
! #		LMT	Local Mean Time
! #	-2:00	FST FDT	Fernando de Noronha
! #	-3:00	EST EDT	Eastern South America (conflicts with -5:00)
! #	-4:00	AST ADT	Andes*, Antilles*, Asuncion*, Atlantic
! #	-4:00	CST CDT	Chile (conflicts with -6:00)
! #	-4:00	WST WDT	Western Brazil
! #	-5:00	AST ADT	Acre (conflicts with -4:00)
! #	-5:00	EST EDT	Eastern, Ecuador*
! #	-6:00	CST CDT	Archipelago of Columbus*, Central
! #	-7:00	MST MDT	Mataveri*, Mountain
  #
  # See the `africa' file for Zone naming conventions.
  
--- 14,31 ----
  # the rest are from earlier versions of this file, or from other sources.
  # Some of these are just plausible excuses for common English abbreviations.
  # Corrections are welcome!
! #		std	dst
! #		LMT		Local Mean Time
! #	-2:00	FST	FDT	Fernando de Noronha
! #	-3:00	EST	EDT	Eastern South America (conflicts with -5:00)
! #	-3:00	ARST	ARDT	Argentina
! #	-4:00	AST	ADT	Andes*, Antilles*, Asuncion*, Atlantic
! #	-4:00	CST	CDT	Chile (conflicts with -6:00)
! #	-4:00	WST	WDT	Western Brazil
! #	-5:00	AST	ADT	Acre (conflicts with -4:00)
! #	-5:00	EST	EDT	Eastern, Ecuador*
! #	-6:00	CST	CDT	Archipelago of Columbus*, Central
! #	-7:00	MST	MDT	Mataveri*, Mountain
  #
  # See the `africa' file for Zone naming conventions.
  
***************
*** 51,66 ****
  
  # From Hernan G. Otero <hernan at isoft.com.ar> (June 26, 1995):
  # I am sending modifications to the Argentinian time zone table...
! # please check comments below to find out the source used.
! # 
! # We did three modifications:
! # 
! # * The table was completed for the missing years 1989-1993.
! # * The name of the time zone was changed from
! #   America/Buenos_Aires to Argentina/Buenos_Aires
! # * The (short) names where changed from E%sT to AR%s (AR was
! #   chosen because they are the ISO letters that represent
! #   Argentina).
  
  # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
  Rule	Arg	1930	only	-	Dec	 1	0:00	1:00	D
--- 52,58 ----
  
  # From Hernan G. Otero <hernan at isoft.com.ar> (June 26, 1995):
  # I am sending modifications to the Argentinian time zone table...
! # AR was chosen because they are the ISO letters that represent Argentina.
  
  # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
  Rule	Arg	1930	only	-	Dec	 1	0:00	1:00	D
***************
*** 97,125 ****
  # These corrections were contributed by InterSoft Argentina S.A.,
  # obtaining the data from the:
  # Talleres de Hidrografia Naval Argentina
! # (Argentinian Naval Hidrography Institute)
  #
! Rule	Arg	1989	only	-	Mar	 5	0:00	0	S
! Rule	Arg	1989	only	-	Oct	15	0:00	1:00	D
! Rule	Arg	1990	only	-	Mar	 4	0:00	0	S
! Rule	Arg	1990	only	-	Oct	21	0:00	1:00	D
! Rule	Arg	1991	only	-	Mar	 3	0:00	0	S
! Rule	Arg	1991	only	-	Oct	20	0:00	1:00	D
! Rule	Arg	1992	only	-	Mar	 1	0:00	0	S
! Rule	Arg	1992	only	-	Oct	18	0:00	1:00	D
! Rule	Arg	1993	only	-	Mar	 7	0:00	0	S
  #
  # From Hernan G. Otero <hernan at isoft.com.ar> (June 26, 1995):
  # From this moment on, the law that mandated the daylight saving
  # time corrections was derogated and no more modifications
  # to the time zones (for daylight saving) are now made.
  #
! # Zone	NAME				GMTOFF		RULES	FORMAT	[UNTIL]
! Zone Argentina/Buenos_Aires -3:53:48 -	LMT	1894 Nov
! 							-4:17	-	CMT	1920 May    # Cordoba Mean Time
! 							-4:00	-	AST	1930 Dec
! 							-4:00	Arg	A%sT	1969 Oct 5
! 							-3:00	Arg	AR%s
  
  # Brazil
  
--- 89,118 ----
  # These corrections were contributed by InterSoft Argentina S.A.,
  # obtaining the data from the:
  # Talleres de Hidrografia Naval Argentina
! # (Argentinian Naval Hydrography Institute)
  #
! # Shanks gives 1989 Mar 16 and stops after 1990 Mar 4; go with Otero.
! Rule	Arg	1989	1993	-	Mar	Sun>=1	0:00	0	S
! Rule	Arg	1989	1992	-	Oct	Sun>=15	0:00	1:00	D
  #
  # From Hernan G. Otero <hernan at isoft.com.ar> (June 26, 1995):
  # From this moment on, the law that mandated the daylight saving
  # time corrections was derogated and no more modifications
  # to the time zones (for daylight saving) are now made.
  #
! # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
! Zone America/Buenos_Aires -3:53:48 -	LMT	1894 Nov
! 			-4:17	-	CMT	1920 May    # Cordoba Mean Time
! 			-4:00	-	AST	1930 Dec
! 			-4:00	Arg	A%sT	1969 Oct 5
! 			-3:00	Arg	AR%sT
! 
! # Bolivia
! # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
! Zone	America/La_Paz	-4:32:36 -	LMT	1890
! 			-4:33	-	LPMT	1931 Oct 15 # La Paz Mean Time
! 			-4:33	1:00	LPDT	1932 Mar 21
! 			-4:00	-	AST
  
  # Brazil