coap/fauxhoc: Remove old workarounds, prettify errors

examples/coap/fauxhoc.py

@@ -51,7 +51,7 @@
 
 if args.peer.count("/") != 2:
     p.error(
-        "Peer should be given as 'coap://[2001:db8:;1]' or similar, without trailing slash."
+        "Peer should be given as 'coap://[2001:db8::1]' or similar, without trailing slash."
     )
 
 # Someone told us that these are the credentials of devices that are our legitimate peers
@@ -162,10 +162,6 @@ async def main():
     msg2 = await ctx.request(msg1).response_raising
 
     (c_r, id_cred_r, ead_2) = initiator.parse_message_2(msg2.payload)
-    # https://github.com/openwsn-berkeley/lakers/issues/256 -- conveniently,
-    # after it is fixed, the line becomes a no-op, so this can stay in until a
-    # Lakers release to PyPI happened.
-    id_cred_r = bytes(id_cred_r)
 
     print(f"Received MSG2 with {c_r=} {id_cred_r=} {ead_2=}")
 
@@ -208,4 +204,4 @@ async def main():
 
 
 if __name__ == "__main__":
-    asyncio.run(main())
+    asyncio.run(coap_console.aiocoap_errors_are_pretty(main()))