messages/MMDSOpenInoReply.h: init 'error' in ctor

Fix for:

CID 1026812 (#1 of 1): Uninitialized scalar field (UNINIT_CTOR)
 uninit_member: Non-static class member error is not initialized in
 this constructor nor in any functions that it calls.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>

Author: dalgaaf

src/messages/MMDSOpenInoReply.h

@@ -23,7 +23,7 @@ struct MMDSOpenInoReply : public Message {
   mds_rank_t hint;
   int32_t error;
 
-  MMDSOpenInoReply() : Message(MSG_MDS_OPENINOREPLY) {}
+  MMDSOpenInoReply() : Message(MSG_MDS_OPENINOREPLY), error(0) {}
   MMDSOpenInoReply(ceph_tid_t t, inodeno_t i, mds_rank_t h=MDS_RANK_NONE, int e=0) :
     Message(MSG_MDS_OPENINOREPLY), ino(i), hint(h), error(e) {
     header.tid = t;