Add explanatory comment.
p4raw-id: //depot/perl@12482
STATUS_POSIX_SET(SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv));
break;
case '!':
+ /* Don't be merge these two SETERRNO calls because
+ * the idea is to make non-VMS places not to see
+ * the dollar in the identifier: that is non-ANSI. */
#ifdef VMS
SETERRNO(0, (SvIV(sv) == EVMSERR) ? 4 : vaxc$errno);
#else