Fix hostname printing in error messages

[ptoscano]

• change ConnectionOSErrorException.host to be a normalized hostname
• normalize the hostname in a specific error message that does not use ExceptionMapper

These changes will fix the printing of IPv6 addresses in error messages.

Card ID: CCT-9

[github-actions]

Coverage (computed on Fedora latest) •

File	Stmts	Miss	Cover	Missing
rhsm
connection.py	1010	455	54%	48–49, 53, 55–56, 81, 101–102, 150, 284, 315, 381–386, 390–399, 460, 462, 564, 567, 574–580, 585, 641, 676–680, 682, 695, 722, 725–726, 728–729, 731, 742–746, 750, 754, 756–757, 784, 787, 791–792, 797, 800–801, 816, 820, 822–823, 850–856, 858, 860–867, 869, 872, 877, 880, 882, 884–888, 890–891, 893–898, 900–901, 903–904, 911–920, 922, 925–931, 933–934, 936–937, 948–953, 965–968, 973, 1037, 1039–1044, 1046, 1051–1055, 1061–1064, 1066–1071, 1075–1080, 1087, 1124, 1126, 1131, 1142, 1151–1154, 1158, 1160–1162, 1166–1167, 1169–1176, 1178, 1180, 1183–1190, 1193–1194, 1199, 1201, 1251, 1268–1271, 1295, 1317, 1347, 1352, 1355, 1358–1359, 1364, 1367, 1372, 1375, 1418–1422, 1429–1430, 1432, 1440–1441, 1443, 1460, 1473–1475, 1478, 1491, 1498, 1502, 1530–1532, 1537–1538, 1540–1541, 1543–1544, 1546–1560, 1562–1564, 1566–1577, 1579, 1596–1598, 1600–1602, 1604–1606, 1611, 1616–1618, 1623, 1650, 1682–1710, 1715–1716, 1718–1720, 1723–1724, 1727–1728, 1731–1732, 1751–1752, 1761–1762, 1772–1773, 1780–1781, 1787–1790, 1796–1799, 1805–1806, 1812–1813, 1833–1834, 1843–1847, 1855–1856, 1882–1885, 1910–1911, 1920–1921, 1929–1930, 1951, 1953–1955, 1957, 1959, 1962, 1964–1977, 1979–1980, 1989–1991, 2003–2004, 2013–2014, 2016, 2018–2020, 2027–2029, 2038–2040, 2048–2049, 2060, 2062–2063, 2065, 2067–2070, 2072–2074, 2077, 2079, 2086–2087, 2094–2095, 2105–2106, 2116–2119, 2129–2135, 2142–2145
subscription_manager/cli_command
cli.py	209	31	85%	65, 69, 124, 128–129, 144, 201, 205, 207, 250, 289, 300–302, 316–318, 340, 360, 386, 395–396, 400–401, 417, 419–420, 422–423, 428, 436
TOTAL	18157	4561	74%

Tests	Skipped	Failures	Errors	Time
2636	9 💤	0 ❌	0 🔥	55.445s ⏱️

[m-horky]

I can still see the incorrectly formatted address:

$ ((4e71f02ba...)) subscription-manager register --serverurl=[fe80::5]:1234/prefix
Unable to reach the server at fe80::5:1234/prefix

See cli.py:389.

[ptoscano]

I can still see the incorrectly formatted address:

$ ((4e71f02ba...)) subscription-manager register --serverurl=[fe80::5]:1234/prefix
Unable to reach the server at fe80::5:1234/prefix

See cli.py:389.

Ah, the joy of custom exception handling... fixed this one easily.

[m-horky]

LGTM