librbd: cleanup few log lines

Currently:
2023-04-28T12:20:17.135+0530 7f1a7ccd2640 20 librbd::ExclusiveLock: 0x7f1a4c000b60 block_requestsr=0
[...]
2023-04-28T12:20:17.135+0530 7f1a7ccd2640 20 librbd::ManagedLock: 0x7f1a4c000b78 is_lock_owner: =1
[...]
2023-04-18T21:18:50.695+0530 7f0a1ffff640 20 librbd::ImageWatcher: 0x7f0a10007840 remote async request finished: [4305,140018014309120,1] = -110

Signed-off-by: Prasanna Kumar Kalever <[email protected]>

Author: Prasanna Kumar Kalever

src/librbd/ExclusiveLock.cc

@@ -95,7 +95,7 @@ void ExclusiveLock<I>::block_requests(int r) {
     m_request_blocked_ret_val = r;
   }
 
-  ldout(m_image_ctx.cct, 20) << "r=" << r << dendl;
+  ldout(m_image_ctx.cct, 20) << ": r=" << r << dendl;
 }
 
 template <typename I>

src/librbd/ImageWatcher.cc

@@ -149,7 +149,7 @@ template <typename I>
 void ImageWatcher<I>::notify_async_complete(const AsyncRequestId &request,
                                             int r) {
   ldout(m_image_ctx.cct, 20) << this << " remote async request finished: "
-			     << request << " = " << r << dendl;
+			     << request << "=" << r << dendl;
 
   send_notify(new AsyncCompletePayload(request, r),
     new LambdaContext(boost::bind(&ImageWatcher<I>::handle_async_complete,

src/librbd/ManagedLock.cc

@@ -122,7 +122,7 @@ bool ManagedLock<I>::is_lock_owner(ceph::mutex &lock) const {
     break;
   }
 
-  ldout(m_cct, 20) << "=" << lock_owner << dendl;
+  ldout(m_cct, 20) << lock_owner << dendl;
   return lock_owner;
 }