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, 1 deletions

diff --git a/src/sync.h b/src/sync.h
index cd319e0171..4b81b4bd32 100644
--- a/src/sync.h
+++ b/src/sync.h
@@ -260,5 +260,5 @@ public:
         return fHaveGrant;
     }
 };
-#endif
 
+#endif // BITCOIN_SYNC_H