2024 Feb. 22 (Thu.) [Content-Type] /usr/sbin/logwatch を us-ascii に [長年日記]
_ 8859 で検索して二行分
iso-8859-1 ⇒ us-ascii
と
if ( $Config{'format'} eq "html" ) { # $out_mime .= "Content-Type: text/html; charset=\"iso-8859-1\"\n\n"; $out_mime .= "Content-Type: text/html; charset=\"us-ascii\"\n\n"; } else { # $out_mime .= "Content-Type: text/plain; charset=\"iso-8859-1\"\n\n"; $out_mime .= "Content-Type: text/plain; charset=\"us-ascii\"\n\n"; }