Syntax error in mailto: IRI prevents loading of the ttl release 1.0.2

[vincentvialard]

The space after the colon in the mailto: IRI for the mediator causes errors at least in some parsers.
For instance, the file can not be opened in Protégé.

    foaf:mbox <mailto: contact@semic.eu> ;

(source: https://github.com/SEMICeu/CPSV/blob/b8fb382213f6e6606a6c7e6fa81dd566508e730d/releases/1.0.2/voc/cpsv.ttl#L14C1-L15C1)

This is does not conform to the specification.
Here are the relevant parts of the specification chain:

      mailtoURI    = "mailto:" [ to ] [ hfields ]
      to           = addr-spec *("," addr-spec )
      addr-spec    = local-part "@" domain
      local-part   = dot-atom-text / quoted-string

(source: https://datatracker.ietf.org/doc/html/rfc6068#section-2)

atext           =   ALPHA / DIGIT /    ; Printable US-ASCII
                       "!" / "#" /        ;  characters not including
                       "$" / "%" /        ;  specials.  Used for atoms.
                       "&" / "'" /
                       "*" / "+" /
                       "-" / "/" /
                       "=" / "?" /
                       "^" / "_" /
                       "`" / "{" /
                       "|" / "}" /
                       "~"
   dot-atom-text   =   1*atext *("." 1*atext)

(source: https://datatracker.ietf.org/doc/html/rfc5322#section-3.2.3)

         ALPHA          =  %x41-5A / %x61-7A   ; A-Z / a-z
         DIGIT          =  %x30-39   ; 0-9

(source: https://datatracker.ietf.org/doc/html/rfc5234#appendix-B.1)