cleanup new script files (no code changes)

- add missing header end comments
- ensure alphabetical ordering
- update copyright year and license

src/script/sign.h

@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef H_BITCOIN_SCRIPT_SIGN
@@ -11,6 +11,7 @@
 class CKeyStore;
 class CScript;
 class CTransaction;
+
 struct CMutableTransaction;
 
 bool SignSignature(const CKeyStore& keystore, const CScript& fromPubKey, CMutableTransaction& txTo, unsigned int nIn, int nHashType=SIGHASH_ALL);
@@ -20,4 +21,4 @@ bool SignSignature(const CKeyStore& keystore, const CTransaction& txFrom, CMutab
 // combine them intelligently and return the result.
 CScript CombineSignatures(CScript scriptPubKey, const CTransaction& txTo, unsigned int nIn, const CScript& scriptSig1, const CScript& scriptSig2);
 
-#endif
+#endif // H_BITCOIN_SCRIPT_SIGN