Update help

myth

@@ -63,7 +63,7 @@ utils = parser.add_argument_group('utilities')
 utils.add_argument('-d', '--disassemble',  action='store_true', help='print disassembly')
 utils.add_argument('--xrefs', action='store_true', help='get xrefs from a contract')
 utils.add_argument('--hash', help='calculate function signature hash', metavar='SIGNATURE')
-utils.add_argument('--storage', help='read state variables from storage index (index,length,array(in case of arrays)), use with -a', metavar='INDEX')
+utils.add_argument('--storage', help='read state variables from storage index, use with -a', metavar='INDEX,NUM_SLOTS,[array]')
 
 options = parser.add_argument_group('options')
 options.add_argument('--ipc', help='use IPC interface instead of RPC', action='store_true')
@@ -262,7 +262,7 @@ if args.storage:
                 if re.match("array",params[2]):
                     array = 1
             if len(params) >= 4:
-                exitWithError("Invalid amount of parameters.")
+                exitWithError("Invalid number of parameters.")
         except ValueError:
             exitWithError("Invalid storage index. Please provide a numeric value.")