[tz] [PROPOSED 2/2] Prefer “°” to “degrees” when quoting source saying former

[Paul Eggert]

---
 africa     | 2 +-
 antarctica | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/africa b/africa
index cfb9283c..90018808 100644
--- a/africa
+++ b/africa
@@ -1210,7 +1210,7 @@ Zone	Africa/Windhoek	1:08:24 -	LMT	1892 Feb 8
 # https://libsysdigi.library.illinois.edu/ilharvest/Africana/Books2011-05/3064634/3064634_1914/3064634_1914_opt.pdf#page=27
 # "On January 1st [1914], a universal standard time for Nigeria was adopted,
 # viz., half an hour fast on Greenwich mean time, corresponding to the meridian
-# 7 [degrees] 30' E. long."
+# 7° 30' E. long."
 # Lloyd's Register of Shipping (1915) says "Hitherto the time observed in Lagos
 # was the local mean time. On 1st January, 1914, standard time for the whole of
 # Nigeria was introduced ... Lagos time has been advanced about 16 minutes
diff --git a/antarctica b/antarctica
index f02755ae..fc603e99 100644
--- a/antarctica
+++ b/antarctica
@@ -292,7 +292,7 @@ Zone Antarctica/Rothera	0	-	-00	1976 Dec  1
 # but that he found it more convenient to keep GMT+12
 # as supplies for the station were coming from McMurdo Sound,
 # which was on GMT+12 because New Zealand was on GMT+12 all year
-# at that time (1957).  (Source: Siple's book 90 Degrees South.)
+# at that time (1957).  (Source: Siple's book 90° South.)
 #
 # From Susan Smith
 # http://www.cybertours.com/whs/pole10.html
-- 
2.37.2