Defined RERR_CRASH and RERR_TERMINATED.

errcode.h

@@ -34,6 +34,8 @@
 #define RERR_STREAMIO   12      /* error in rsync protocol data stream */
 #define RERR_MESSAGEIO  13      /* errors with program diagnostics */
 #define RERR_IPC        14      /* error in IPC code */
+#define RERR_CRASH      15      /* sibling crashed */
+#define RERR_TERMINATED 16      /* sibling terminated abnormally */
 
 #define RERR_SIGNAL     20      /* status returned when sent SIGUSR1, SIGINT */
 #define RERR_WAITCHILD  21      /* some error returned by waitpid() */