JIS has not endorsed the full Microsoft standard however.
The official C<Shift_JIS> includes only JIS X 0201 and JIS X 0208
subsets, while Microsoft has always been meaning C<Shift_JIS> to
-encode a wider character repertoire, see C<IANA> registration for
+encode a wider character repertoire. See C<IANA> registration for
C<Windows-31J>.
As a historical predecessor Microsoft's variant
that Microsoft shouldn't have used JIS as part of the name
in the first place.
-Unabiguous name: C<CP932>. C<IANA> name (not used?): C<Windows-31J>.
+Unambiguous name: C<CP932>. C<IANA> name (not used?): C<Windows-31J>.
Encode separately supports C<Shift_JIS> and C<cp932>.