Updated test files to reflect the fixed typo

tests/testdata/outputs_expected/origin.sol.o.json

@@ -4,7 +4,7 @@
     "issues": [
         {
             "title": "Use of tx.origin",
-            "description": "Function transferOwnership(address) 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",
+            "description": "Function transferOwnership(address) 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",
             "function": "transferOwnership(address)",
             "type": "Warning",
             "address": 317,

tests/testdata/outputs_expected/origin.sol.o.markdown

@@ -9,5 +9,5 @@
 
 ### Description
 
-Function transferOwnership(address) retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use tx.sender instead.
+Function transferOwnership(address) retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
 See also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin

tests/testdata/outputs_expected/origin.sol.o.text

@@ -3,7 +3,7 @@ Type: Warning
 Contract: Unknown
 Function name: transferOwnership(address)
 PC address: 317
-Function transferOwnership(address) retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use tx.sender instead.
+Function transferOwnership(address) retrieves the transaction origin (tx.origin) using the ORIGIN opcode. Use msg.sender instead.
 See also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin
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