fixed typos

mythril/analysis/modules/deprecated_ops.py

@@ -11,7 +11,7 @@ Check for constraints on tx.origin (i.e., access to some functionality is restri
 
 def execute(statespace):
 
-    logging.debug("Executing module: DEPRECIATED OPCODES")
+    logging.debug("Executing module: DEPRECATED OPCODES")
 
     issues = []
 
@@ -25,7 +25,7 @@ def execute(statespace):
             if(instruction['opcode'] == "ORIGIN"):
 
                 issue = Issue(node.contract_name, node.function_name, instruction['address'], "Use of tx.origin", "Warning",
-                    "Function " + node.function_name + " retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use tx.sender instead.\nSee also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin"
+                    "Function " + node.function_name + " retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.\nSee also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin"
                 )
 
                 issues.append(issue)