A slash in the UTF8 string of the -inscriptions option now will start
the inscriptions of the pieces from the secondary series. This allows
writing -incription values that will remain valid wehen new pieces would
be added to the end of the primary series.
p = appData.inscriptions;
n = piece;
while(piece > WhitePawn) {
+ if(*p == '/') p++, piece = n - WhitePBishop; // secondary series
if(*p++ == NULLCHAR) {
if(n != WhiteKing) return;
p = q;