Small Linux Build Fix

[phelixbtc]

suggested by PMC: https://forum.namecoin.info/viewtopic.php?p=11657#p11657

--- namecoin-nc0.3.75/src/db.h.orig     2014-06-19 13:05:55.000000000 +0200
+++ namecoin-nc0.3.75/src/db.h  2014-06-19 13:07:03.000000000 +0200
@@ -313,7 +313,7 @@
     Rewrite ()
     {
       Close ();
-      Rewrite (strFile);
+      return Rewrite (strFile);
     }

     /**

[Daniel Kraft]

That's fine. You can turn it into a pull request and merge it. ACK.

[phelixbtc]

Solved by #174