[VOL-5486] Fix deprecated versions

Change-Id: Ia8cf5de26cc045c8519da848cd4314459a331e16
Signed-off-by: Abhay Kumar <abhay.kumar@radisys.com>
diff --git a/vendor/go.uber.org/atomic/bool_ext.go b/vendor/go.uber.org/atomic/bool_ext.go
index a2e60e9..c7bf7a8 100644
--- a/vendor/go.uber.org/atomic/bool_ext.go
+++ b/vendor/go.uber.org/atomic/bool_ext.go
@@ -38,7 +38,7 @@
 }
 
 // Toggle atomically negates the Boolean and returns the previous value.
-func (b *Bool) Toggle() (old bool) {
+func (b *Bool) Toggle() bool {
 	for {
 		old := b.Load()
 		if b.CAS(old, !old) {