Trim trailing whitespace for src/*.{h,cpp}

src/db.cpp

@@ -281,7 +281,7 @@ bool CDB::Rewrite(const string& strFile, const char* pszSkip)
                 { // surround usage of db with extra {}
                     CDB db(strFile.c_str(), "r");
                     Db* pdbCopy = new Db(&bitdb.dbenv, 0);
-    
+
                     int ret = pdbCopy->open(NULL,                 // Txn pointer
                                             strFileRes.c_str(),   // Filename
                                             "main",    // Logical db name
@@ -293,7 +293,7 @@ bool CDB::Rewrite(const string& strFile, const char* pszSkip)
                         printf("Cannot create database file %s\n", strFileRes.c_str());
                         fSuccess = false;
                     }
-    
+
                     Dbc* pcursor = db.GetCursor();
                     if (pcursor)
                         while (fSuccess)