Retire sparc (32 bits) and vax, add riscv64.
From Raf Czlonka
-/* $OpenBSD: sendbug.c,v 1.78 2017/08/21 21:41:13 deraadt Exp $ */
+/* $OpenBSD: sendbug.c,v 1.79 2022/03/29 18:44:12 jca Exp $ */
/*
* Written by Ray Lai <ray@cyth.net>.
void usbdevs(FILE *);
const char *categories = "system user library documentation kernel "
- "alpha amd64 arm hppa i386 m88k mips64 powerpc sh sparc sparc64 vax";
+ "alpha amd64 arm hppa i386 m88k mips64 powerpc riscv64 sh sparc64";
const char *comment[] = {
"<synopsis of the problem (one line)>",
"<PR category (one line)>",