In a few cases the present entries are left unchanged by the patch
despite the fact that the official 'Country names (short names)' 
from ISO 3166-1 are different, because the official short names 
are unnecessarily long:
FM      Micronesia (official short name: Micronesia, Federated States of)
IR      Iran (official short name: Iran, Islamic Republic of)
LA      Laos (official short name: Lao People's Democratic Republic)
LY      Libya (official short name: Libyan Arab Jamahiriya)
MK      Macedonia (official short name: Macedonia, The Former Yugoslav Republic of)
PS      Palestine (official short name: Palestinian Territory, Occupied)
SY      Syria (official short name: Syrian Arab Republic)
TW      Taiwan (official short name: Taiwan, Province of China)
TZ      Tanzania (official short name: Tanzania, United Republic of)

The /usr/share/zoneinfo/iso3166.tab file says that names differing 
from the official ISO 3166-1 names were used in some cases to get a better 
alphabetic sorting. However, the changes below will not lead to
any problems with respect to a meaningful alphabetic sorting by 
country name (as far as I can see).

ad:and:020:Andorra
ae:are:784:United Arab Emirates
af:afg:004:Afghanistan
ag:atg:028:Antigua and Barbuda
ai:aia:660:Anguilla
al:alb:008:Albania
am:arm:051:Armenia
an:ant:530:Netherlands Antilles
ao:ago:024:Angola
aq:::Antarctica
ar:arg:032:Argentina
as:asm:016:American Samoa
at:aut:040:Austria
au:aus:036:Australia
aw:abw:533:Aruba
az:aze:031:Azerbaijan
ba:bih:070:Bosnia and Herzegovina
bb:brb:052:Barbados
bd:bgd:050:Bangladesh
be:bel:056:Belgium
bf:bfa:854:Burkina Faso
bg:bgr:100:Bulgaria
bh:bhr:048:Bahrain
bi:bdi:108:Burundi
bj:ben:204:Benin
bm:bmu:060:Bermuda
bn:brn:096:Brunei Darussalam
bo:bol:068:Bolivia
br:bra:076:Brazil
bs:bhs:044:Bahamas
bt:btn:064:Bhutan
bv:::Bouvet Island
bw:bwa:072:Botswana
by:blr:112:Belarus
bz:blz:084:Belize
ca:can:124:Canada
cc:::Cocos (Keeling) Islands
cd:cod:180:Congo, The Democratic Republic of the
cf:caf:140:Central African Republic
cg:cog:178:Congo
ch:che:756:Switzerland
ci:civ:384:Cote D'Ivoire
ck:cok:184:Cook Islands
cl:chl:152:Chile
cm:cmr:120:Cameroon
cn:chn:156:China
co:col:170:Colombia
cr:cri:188:Costa Rica
cu:cub:192:Cuba
cv:cpv:132:Cape Verde
cx:::Christmas Island
cy:cyp:196:Cyprus
cz:cze:203:Czech Republic
de:deu:276:Germany
dj:dji:262:Djibouti
dk:dnk:208:Denmark
dm:dma:212:Dominica
do:dom:214:Dominican Republic
dz:dza:012:Algeria
ec:ecu:218:Ecuador
ee:est:233:Estonia
eg:egy:818:Egypt
eh:esh:732:Western Sahara
er:eri:232:Eritrea
es:esp:724:Spain
et:eth:231:Ethiopia
fi:fin:246:Finland
fj:fji:242:Fiji
fk:flk:238:Falkland Islands (Malvinas)
fm:fsm:583:Micronesia, Federated States of
fo:fro:234:Faroe Islands
fr:fra:250:France
fx:::France, Metropolitan
ga:gab:266:Gabon
gb:gbr:826:United Kingdom
gd:grd:308:Grenada
ge:geo:268:Georgia
gf:guf:254:French Guiana
gh:gha:288:Ghana
gi:gib:292:Gibraltar
gl:grl:304:Greenland
gm:gmb:270:Gambia
gn:gin:324:Guinea
gp:glp:312:Guadeloupe
gq:gnq:226:Equatorial Guinea
gr:grc:300:Greece
gs:::South Georgia and the South Sandwich Islands
gt:gtm:320:Guatemala
gu:gum:316:Guam
gw:gnb:624:Guinea-Bissau
gy:guy:328:Guyana
hk:hkg:344:Hong Kong
hm:::Heard Island and McDonald Islands
hn:hnd:340:Honduras
hr:hrv:191:Croatia
ht:hti:332:Haiti
hu:hun:348:Hungary
id:idn:360:Indonesia
ie:irl:372:Ireland
il:isr:376:Israel
in:ind:356:India
io:::British Indian Ocean Territory
iq:irq:368:Iraq
ir:irn:364:Iran, Islamic Republic of
is:isl:352:Iceland
it:ita:380:Italy
jm:jam:388:Jamaica
jo:jor:400:Jordan
jp:jpn:392:Japan
ke:ken:404:Kenya
kg:kgz:417:Kyrgyzstan
kh:khm:116:Cambodia
ki:kir:296:Kiribati
km:com:174:Comoros
kn:kna:659:Saint Kitts and Nevis
kp:prk:408:Korea, Democratic People's Republic of
kr:kor:410:Korea, Republic of
kw:kwt:414:Kuwait
ky:cym:136:Cayman Islands
kz:kaz:398:Kazakstan
la:lao:418:Lao People's Democratic Republic
lb:lbn:422:Lebanon
lc:lca:662:Saint Lucia
li:lie:438:Liechtenstein
lk:lka:144:Sri Lanka
lr:lbr:430:Liberia
ls:lso:426:Lesotho
lt:ltu:440:Lithuania
lu:lux:442:Luxembourg
lv:lva:428:Latvia
ly:lby:434:Libyan Arab Jamahiriya
ma:mar:504:Morocco
mc:mco:492:Monaco
md:mda:498:Moldova, Republic of
mg:mdg:450:Madagascar
mh:mhl:584:Marshall Islands
mk:mkd:807:Macedonia, the Former Yugoslav Republic of
ml:mli:466:Mali
mm:mmr:104:Myanmar
mn:mng:496:Mongolia
mo:mac:446:Macau
mp:mnp:580:Northern Mariana Islands
mq:mtq:474:Martinique
mr:mrt:478:Mauritania
ms:msr:500:Montserrat
mt:mlt:470:Malta
mu:mus:480:Mauritius
mv:mdv:462:Maldives
mw:mwi:454:Malawi
mx:mex:484:Mexico
my:mys:458:Malaysia
mz:moz:508:Mozambique
na:nam:516:Namibia
nc:ncl:540:New Caledonia
ne:ner:562:Niger
nf:nfk:574:Norfolk Island
ng:nga:566:Nigeria
ni:nic:558:Nicaragua
nl:nld:528:Netherlands
no:nor:578:Norway
np:npl:524:Nepal
nr:nru:520:Nauru
nu:niu:570:Niue
nz:nzl:554:New Zealand
om:omn:512:Oman
pa:pan:591:Panama
pe:per:604:Peru
pf:pyf:258:French Polynesia
pg:png:598:Papua New Guinea
ph:phl:608:Philippines
pk:pak:586:Pakistan
pl:pol:616:Poland
pm:spm:666:Saint Pierre and Miquelon
pn:pcn:612:Pitcairn
pr:pri:630:Puerto Rico
ps:pse:275:Palestinian Territory, Occupied
pt:prt:620:Portugal
pw:plw:585:Palau
py:pry:600:Paraguay
qa:qat:634:Qatar
re:reu:638:Reunion
ro:rom:642:Romania
ru:rus:643:Russian Federation
rw:rwa:646:Rwanda
sa:sau:682:Saudi Arabia
sb:slb:090:Solomon Islands
sc:syc:690:Seychelles
sd:sdn:736:Sudan
se:swe:752:Sweden
sg:sgp:702:Singapore
sh:shn:654:Saint Helena
si:svn:705:Slovenia
sj:sjm:744:Svalbard and Jan Mayen
sk:svk:703:Slovakia
sl:sle:694:Sierra Leone
sm:smr:674:San Marino
sn:sen:686:Senegal
so:som:706:Somalia
sr:sur:740:Suriname
st:stp:678:Sao Tome and Principe
sv:slv:222:El Salvador
sy:syr:760:Syrian Arab Republic
sz:swz:748:Swaziland
tc:tca:796:Turks and Caicos Islands
td:tcd:148:Chad
tf:::French Southern Territories
tg:tgo:768:Togo
th:tha:764:Thailand
tj:tjk:762:Tajikistan
tk:tkl:772:Tokelau
tm:tkm:795:Turkmenistan
tn:tun:788:Tunisia
to:ton:776:Tonga
tp:tmp:626:East Timor
tr:tur:792:Turkey
tt:tto:780:Trinidad and Tobago
tv:tuv:798:Tuvalu
tw:twn:158:Taiwan, Province of China
tz:tza:834:Tanzania, United Republic of
ua:ukr:804:Ukraine
ug:uga:800:Uganda
um:::United States Minor Outlying Islands
us:usa:840:United States
uy:ury:858:Uruguay
uz:uzb:860:Uzbekistan
va:vat:336:Holy See (Vatican City State)
vc:vct:670:Saint Vincent and the Grenadines
ve:ven:862:Venezuela
vg:vgb:092:Virgin Islands, British
vi:vir:850:Virgin Islands, U.S.
vn:vnm:704:Vietnam
vu:vut:548:Vanuatu
wf:wlf:876:Wallis and Futuna
ws:wsm:882:Samoa
ye:yem:887:Yemen
yt:::Mayotte
yu:yug:891:Yugoslavia
za:zaf:710:South Africa
zm:zmb:894:Zambia
zr:::Zaire
zw:zwe:716:Zimbabwe