Patch #1634778: add missing encoding aliases for iso8859_15 and
iso8859_16.
diff --git a/Lib/email/charset.py b/Lib/email/charset.py
index 8f218b2..d5ed3a8 100644
--- a/Lib/email/charset.py
+++ b/Lib/email/charset.py
@@ -46,6 +46,7 @@
     'iso-8859-13': (QP,        QP,      None),
     'iso-8859-14': (QP,        QP,      None),
     'iso-8859-15': (QP,        QP,      None),
+    'iso-8859-16': (QP,        QP,      None),
     'windows-1252':(QP,        QP,      None),
     'viscii':      (QP,        QP,      None),
     'us-ascii':    (None,      None,    None),
@@ -81,6 +82,8 @@
     'latin-8': 'iso-8859-14',
     'latin_9': 'iso-8859-15',
     'latin-9': 'iso-8859-15',
+    'latin_10':'iso-8859-16',
+    'latin-10':'iso-8859-16',
     'cp949':   'ks_c_5601-1987',
     'euc_jp':  'euc-jp',
     'euc_kr':  'euc-kr',