rpc: set default log category in core_rpc_server.h

src/rpc/core_rpc_server.h

@@ -40,6 +40,9 @@
 #include "p2p/net_node.h"
 #include "cryptonote_protocol/cryptonote_protocol_handler.h"
 
+#undef MONERO_DEFAULT_LOG_CATEGORY
+#define MONERO_DEFAULT_LOG_CATEGORY "daemon.rpc"
+
 // yes, epee doesn't properly use its full namespace when calling its
 // functions from macros.  *sigh*
 using namespace epee;