nxagent: Free atom map on termination

Author: uli42

nx-X11/programs/Xserver/hw/nxagent/NXdispatch.c

@@ -584,6 +584,8 @@ Reply   Total	Cached	Bits In			Bits Out		Bits/Reply	  Ratio
     nxagentFreeFontData();
 #endif /* NXAGENT_SERVER */
 
+    nxagentFreeAtomMap();
+
     KillAllClients();
     free(clientReady);
     dispatchException &= ~DE_RESET;