Ethereum Greeter Updated from v4

The following is a code snippet originally posted by Daniel McClure on GitHub as a Gist.

greeter.sol

“`
pragma solidity ^0.5.0;

contract mortal {
/* Define variable owner of the type address */
address owner;

/* This function is executed at initialisation and sets the owner of the contract */
constructor() public { owner = msg.sender; }

/* Function to recover the funds of the contract */
function kill() public { if (msg.sender == owner) selfdestruct(msg.sender); }
}

contract greeter is mortal {
/* Define variable greeting of the type string */
string greeting;

/* This runs when the contract is executed */
constructor(string memory _greeting) public {
greeting = _greeting;
}

/* Main Function */
function greet() public view returns (string memory) {
return greeting;
}
}
“`

Original Gist