ICU update to 54 step 3

source/data/mappings/iso-8859-10-html.ucm

-#
-#       Name:             ISO/IEC 8859-10:1998 to Unicode
-#       Unicode version:  3.0
-#       Table version:    1.1
-#       Table format:     Format A
-#       Date:             1999 October 11
-#       Authors:          Ken Whistler <kenw@sybase.com>
-#
-#       Copyright (c) 1999 Unicode, Inc.  All Rights reserved.
-#       Copyright (C) 2002-2005, International Business Machines
-#           Corporation and others.  All Rights Reserved.
-#
-#       This file is provided as-is by Unicode, Inc. (The Unicode Consortium).
-#       No claims are made as to fitness for any particular purpose.  No
-#       warranties of any kind are expressed or implied.  The recipient
-#       agrees to determine applicability of information provided.  If this
-#       file has been provided on optical media by Unicode, Inc., the sole
-#       remedy for any claim will be exchange of defective media within 90
-#       days of receipt.
-#
-#       Unicode, Inc. hereby grants the right to freely use the information
-#       supplied in this file in the creation of products supporting the
-#       Unicode Standard, and to make copies of this file in any form for
-#       internal or external distribution as long as this notice remains
-#       attached.
-#
-#       General notes:
-#
-#       This table contains the data the Unicode Consortium has on how
-#       ISO/IEC 8859-10:1998 characters map into Unicode.
-#
-#       Format:  The ICU UCM format
-#
-#       Version history
-#       1.0 version new.
-#       1.1 corrected mistake in mapping of 0xA4
-#
-#       Updated versions of this file may be found in:
-#               <ftp://ftp.unicode.org/Public/MAPPINGS/>
-#
-#       Any comments or problems, contact <errata@unicode.org>
-#       Please note that <errata@unicode.org> is an archival address;
-#       notices will be checked, but do not expect an immediate response.
-#
-<code_set_name>               "iso-8859_10-1998"
+# ***************************************************************************
+# *
+# *   Generated from index-iso-8859-10.txt (
+# *   https://encoding.spec.whatwg.org/index-iso-8859-10.txt )
+# *   following the algorithm for the single byte legacy encoding
+# *   described at http://encoding.spec.whatwg.org/#single-byte-decoder
+# *
+# ***************************************************************************
+<code_set_name>               "iso-8859-10-html"
+<char_name_mask>              "AXXXX"
 <mb_cur_max>                  1
 <mb_cur_min>                  1
 <uconv_class>                 "SBCS"
-<subchar>                     \x1A
+<subchar>                     \x3F
+<icu:charsetFamily>           "ASCII"
+
 CHARMAP
 <U0000> \x00 |0
 <U0001> \x01 |0
 <U0002> \x02 |0
 <U0003> \x03 |0
 <U0004> \x04 |0
 <U0005> \x05 |0
 <U0006> \x06 |0
 <U0007> \x07 |0
 <U0008> \x08 |0
@@ skipping 238 matching lines @@
 <U0168> \xD7 |0
 <U0169> \xF7 |0
 <U016A> \xAE |0
 <U016B> \xBE |0
 <U0172> \xD9 |0
 <U0173> \xF9 |0
 <U017D> \xAC |0
 <U017E> \xBC |0
 <U2015> \xBD |0
 END CHARMAP