Add SB Curated (copied from the smartbugs repository).

dataset/reentrancy/etherstore.sol

@@ -0,0 +1,31 @@
+/*
+ * @source: https://github.com/sigp/solidity-security-blog
+ * @author: Suhabe Bugrara
+ * @vulnerable_at_lines: 27
+ */
+
+//added pragma version
+pragma solidity ^0.4.0;
+
+contract EtherStore {
+
+    uint256 public withdrawalLimit = 1 ether;
+    mapping(address => uint256) public lastWithdrawTime;
+    mapping(address => uint256) public balances;
+
+    function depositFunds() public payable {
+        balances[msg.sender] += msg.value;
+    }
+
+    function withdrawFunds (uint256 _weiToWithdraw) public {
+        require(balances[msg.sender] >= _weiToWithdraw);
+        // limit the withdrawal
+        require(_weiToWithdraw <= withdrawalLimit);
+        // limit the time allowed to withdraw
+        require(now >= lastWithdrawTime[msg.sender] + 1 weeks);
+        // <yes> <report> REENTRANCY
+        require(msg.sender.call.value(_weiToWithdraw)());
+        balances[msg.sender] -= _weiToWithdraw;
+        lastWithdrawTime[msg.sender] = now;
+    }
+ }