Fix to rmi.doh by Martin Swende.

nselib/rmi.lua

@@ -57,6 +57,7 @@ end
 -- end
 local function doh(str,...)
 	stdnse.print_debug("RMI-ERR:"..tostring(str), unpack(arg))
+	return false, str
 end
 
 ---
@@ -1537,4 +1538,4 @@ local RMIMessage = {
 STREAM_MAGIC =  0xaced
 STREAM_VERSION = 5
 
-baseWireHandle = 0x7E0000
+baseWireHandle = 0x7E0000