[tz] [PROPOSED] Swaziland changed its name to Eswatini

[Paul Eggert]

This does not change time data, only a name field in iso3166.tab.
* africa, backzone: Update comments accordingly.
* iso3166.tab: Update SZ name.
---
 africa      | 8 ++++----
 backzone    | 2 +-
 iso3166.tab | 6 +++---
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/africa b/africa
index 0a0f586..e4936e4 100644
--- a/africa
+++ b/africa
@@ -374,6 +374,9 @@ Zone	Africa/Cairo	2:05:09 -	LMT	1900 Oct
 # check the time. PRI's The World. 2015-01-30 15:15 -05.
 # https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-better-double-check-time
 
+# Eswatini (formerly Swaziland)
+# See Africa/Johannesburg.
+
 # Gabon
 # See Africa/Lagos.
 
@@ -1188,7 +1191,7 @@ Zone Africa/Johannesburg 1:52:00 -	LMT	1892 Feb 8
 			1:30	-	SAST	1903 Mar
 			2:00	SA	SAST
 Link Africa/Johannesburg Africa/Maseru	   # Lesotho
-Link Africa/Johannesburg Africa/Mbabane    # Swaziland
+Link Africa/Johannesburg Africa/Mbabane    # Eswatini
 #
 # Marion and Prince Edward Is
 # scientific station since 1947
@@ -1230,9 +1233,6 @@ Zone	Africa/Juba	2:06:28 -	LMT	1931
 			2:00	Sudan	CA%sT	2000 Jan 15 12:00
 			3:00	-	EAT
 
-# Swaziland
-# See Africa/Johannesburg.
-
 # Tanzania
 # See Africa/Nairobi.
 
diff --git a/backzone b/backzone
index c464ce6..380c492 100644
--- a/backzone
+++ b/backzone
@@ -204,7 +204,7 @@ Zone	Africa/Maseru	1:50:00 -	LMT	1903 Mar
 			2:00	1:00	SAST	1944 Mar 19  2:00
 			2:00	-	SAST
 
-# Swaziland
+# Eswatini (formerly Swaziland)
 Zone	Africa/Mbabane	2:04:24 -	LMT	1903 Mar
 			2:00	-	SAST
 
diff --git a/iso3166.tab b/iso3166.tab
index 98fb988..a4ff61a 100644
--- a/iso3166.tab
+++ b/iso3166.tab
@@ -9,8 +9,8 @@
 # All text uses UTF-8 encoding.  The columns of the table are as follows:
 #
 # 1.  ISO 3166-1 alpha-2 country code, current as of
-#     ISO 3166-1 N905 (2016-11-15).  See: Updates on ISO 3166-1
-#     http://isotc.iso.org/livelink/livelink/Open/16944257
+#     ISO 3166-1 N976 (2018-11-06).  See: Updates on ISO 3166-1
+#     https://isotc.iso.org/livelink/livelink/Open/16944257
 # 2.  The usual English name for the coded region,
 #     chosen so that alphabetic sorting of subsets produces helpful lists.
 #     This is not the same as the English name in the ISO 3166 tables.
@@ -235,7 +235,7 @@ ST	Sao Tome & Principe
 SV	El Salvador
 SX	St Maarten (Dutch)
 SY	Syria
-SZ	Swaziland
+SZ	Eswatini (Swaziland)
 TC	Turks & Caicos Is
 TD	Chad
 TF	French Southern & Antarctic Lands
-- 
2.20.1