fix version and stat commands failing on MEMCACHED_SOME_ERRORS

Author: m6w6

include/libmemcached-1.0/return.h

@@ -31,7 +31,7 @@ static inline bool memcached_fatal(memcached_return_t rc) {
   return (rc != MEMCACHED_AUTH_CONTINUE && rc != MEMCACHED_BUFFERED && rc != MEMCACHED_CLIENT_ERROR
           && rc != MEMCACHED_DATA_EXISTS && rc != MEMCACHED_DELETED && rc != MEMCACHED_E2BIG
           && rc != MEMCACHED_END && rc != MEMCACHED_ITEM && rc != MEMCACHED_ERROR
-          && rc != MEMCACHED_NOTFOUND && rc != MEMCACHED_NOTSTORED
+          && rc != MEMCACHED_NOTFOUND && rc != MEMCACHED_NOTSTORED && rc != MEMCACHED_SOME_ERRORS
           && rc != MEMCACHED_SERVER_MEMORY_ALLOCATION_FAILURE && rc != MEMCACHED_STAT
           && rc != MEMCACHED_STORED && rc != MEMCACHED_SUCCESS && rc != MEMCACHED_VALUE);
 }

src/libmemcached/stats.cc

@@ -616,8 +616,9 @@ static memcached_return_t call_stat_fn(memcached_st *memc, memcached_instance_st
 memcached_return_t memcached_stat_execute(memcached_st *shell, const char *args,
                                           memcached_stat_fn func, void *context) {
   Memcached *memc = memcached2Memcached(shell);
-  if (memcached_fatal(memcached_version(memc))) {
-    return memcached_last_error(memc);
+  memcached_return_t rc = memcached_version(memc);
+  if (memcached_fatal(rc)) {
+    return rc;
   }
 
   local_context check(func, context, args, args ? strlen(args) : 0);