BUG #16337: Finnish Ispell dictionary cannot be created

The following bug has been logged on the website:

Bug reference: 16337
Logged by: Matti Linnanvuori
Email address: matti(dot)linnanvuori(at)portalify(dot)com
PostgreSQL version: 12.2
Operating system: Red Hat Enterprise Linux 8.1
Description:

postgres=# CREATE TEXT SEARCH DICTIONARY finnish_ispell ( TEMPLATE = ispell,
DictFile = fi_fi, AffFile = fi_fi, Stopwords = finnish);
ERROR: syntax error
CONTEXT: line 83 of configuration file
"/usr/pgsql-12/share/tsearch_data/fi_fi.affix": " I >
ALI\-
"

http://ispell-fi.sourceforge.net/finnish.dict.bz2
bunzip2 finnish.dict.bz2
iconv -f ISO_8859-1 -t UTF-8 -o fi_fi.dict finnish.dict
cp fi_fi.dict /usr/pgsql-12/share/tsearch_data

http://ispell-fi.sourceforge.net/finnish.large.aff.bz2
bunzip2 finnish.large.aff.bz2
iconv -f ISO_8859-1 -t UTF-8 -o fi_fi.affix finnish.large.aff
cp fi_fi.affix /usr/pgsql-12/share/tsearch_data

http://ispell-fi.sourceforge.net/finnish.medium.aff.bz2
bunzip2 finnish.medium.aff.bz2
iconv -f ISO_8859-1 -t UTF-8 -o fi_fi.affix finnish.medium.aff
cp fi_fi.affix /usr/pgsql-12/share/tsearch_data

https://www.postgresql.org/message-id/46CD5588.5080404%40enterprisedb.com