Show t-shirt text at end of game inventory disclose

Restricting the text display only to the end of game disclose,
so it doesn't clutter the inventory during gameplay and so that
the readability of t-shirts is not given away.

src/objnam.c

@@ -489,6 +489,11 @@ register struct obj *obj;
 	}
 	if (pluralize) Strcpy(buf, makeplural(buf));
 
+	if (obj->otyp == T_SHIRT && program_state.gameover) {
+	    char tmpbuf[BUFSZ];
+	    Sprintf(eos(buf), " with text \"%s\"", tshirt_text(obj, tmpbuf));
+	}
+
 	if (has_oname(obj) && dknown) {
 		Strcat(buf, " named ");
 nameit: