rados: naming conventions: disable revive naming check on old struct

This struct has public fields that violate standard naming conventions.
Disable the check on this struct only.

Signed-off-by: John Mulligan <jmulligan@redhat.com>

rados/conn.go

@@ -14,6 +14,8 @@ import (
 
 var argvPlaceholder = "placeholder"
 
+//revive:disable:var-naming old-yet-exported public api
+
 // ClusterStat represents Ceph cluster statistics.
 type ClusterStat struct {
 	Kb          uint64
@@ -22,6 +24,8 @@ type ClusterStat struct {
 	Num_objects uint64
 }
 
+//revive:enable:var-naming
+
 // Conn is a connection handle to a Ceph cluster.
 type Conn struct {
 	cluster   C.rados_t