Did not properly understand the initializer

Signed-off-by: Madelyn Olson <[email protected]>

src/server.h

@@ -2144,7 +2144,7 @@ typedef struct {
 
 static inline void initGetKeysResult(getKeysResult *result) {
     result->numkeys = 0;
-    result->size = 0;
+    result->size = MAX_KEYS_BUFFER;
     result->keys = NULL;
 }