Apply suggestions from code review

Co-authored-by: dahn <daan.hoogland@gmail.com>

Author: daviftorres

api/src/main/java/org/apache/cloudstack/api/command/user/vpn/UpdateVpnConnectionCmd.java

@@ -66,7 +66,7 @@ public long getEntityOwnerId() {
 
     @Override
     public String getEventDescription() {
-        return "Updating site-to-site VPN connection id = " + id;
+        return "Updating site-to-site VPN connection ID = " + id;
     }
 
     @Override

api/src/main/java/org/apache/cloudstack/api/command/user/vpn/UpdateVpnGatewayCmd.java

@@ -63,7 +63,7 @@ public long getEntityOwnerId() {
 
     @Override
     public String getEventDescription() {
-        return "Update site-to-site VPN gateway id = " + id;
+        return "Update site-to-site VPN gateway ID = " + id;
     }
 
     @Override

engine/schema/src/main/java/com/cloud/vm/dao/UserVmDaoImpl.java

@@ -782,7 +782,7 @@ public List<Ternary<Integer, Integer, Integer>> countVmsBySize(long dcId, int li
                 result.add(new Ternary<Integer, Integer, Integer>(rs.getInt(1), rs.getInt(2), rs.getInt(3)));
             }
         } catch (Exception e) {
-            logger.warn("Error counting vms by size for dcId = " + dcId, e);
+            logger.warn("Error counting vms by size for Data Center ID = " + dcId, e);
         }
         return result;
     }

server/src/main/java/com/cloud/api/query/QueryManagerImpl.java

@@ -2106,7 +2106,7 @@ private Pair<List<ProjectJoinVO>, Integer> listProjectsInternal(ListProjectsCmd
             }
 
             if (domainId != null && !domainId.equals(caller.getDomainId())) {
-                throw new PermissionDeniedException("Can't list domain id = " + domainId + " projects; unauthorized");
+                throw new PermissionDeniedException("Can't list domain ID = " + domainId + " projects; unauthorized");
             }
 
             if (StringUtils.isNotEmpty(username) && !username.equals(user.getUsername())) {