add missing header end comments

- ensures a consistent usage in header files
- also add a blank line after the copyright header where missing
- also remove orphan new-lines at the end of some files

1 files changed, 1 insertions, 2 deletions

diff --git a/src/pow.h b/src/pow.h
index f350d763f4..2a0d9b24bb 100644
--- a/src/pow.h
+++ b/src/pow.h
@@ -1,4 +1,3 @@
-
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2014 The Bitcoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
@@ -24,4 +23,4 @@ void UpdateTime(CBlockHeader* block, const CBlockIndex* pindexPrev);
 
 uint256 GetProofIncrement(unsigned int nBits);
 
-#endif
+#endif // BITCOIN_POW_H