Incorrect enconding name for manual page

[matzeri]

The manual page is reporting

$ head -n 1 mc.1
.\" -*- mode: troff; coding: utf8 -*-

but the official name should be UTF-8

On cygwin we just switched the man system and the new one
man-db-2.6.7-2 is not tolerant anymore, so the man page fails

$ man -d ./mc.1
[cut]
preprocessor encoding: utf8
page_encoding = utf8
source_encoding = utf8
locale_charset = UTF-8
roff_device (locale) = utf8
roff_encoding = ISO-8859-1
output_encoding = UTF-8
less_charset = utf-8
Terminal width 104
Terminal width 104 not within cat page range [80, 80]
Using 101-character lines
formatted_encoding = UTF-8
format: 1, save_cat: 0, found: 1
add_output_iconv: source UTF-8, target UTF-8
opening -
opened -
preprocessor encoding: utf8
trying encoding utf8 -> UTF-8IGNORE
man: iconv_open ("UTF-8IGNORE", "utf8"): Invalid argument

[matzeri]

patch for conversion of utf8 in UTF-8 man pages

[andrew_b]

Fixed as [b9a2ac39e8d2cbd599a9dc9b0c7d878768ccc728].