Fix lint

main.go

@@ -580,7 +580,7 @@ func (s *site) nextProxy() (*Backend, func()) {
 	}
 	switch globalHostBalance {
 	case "least":
-		min := int64(math.MaxInt64)
+		minCall := int64(math.MaxInt64)
 		earliest := int64(math.MaxInt64)
 		idx := 0
 		// Shuffle before picking the least connection to ensure all nodes
@@ -590,8 +590,8 @@ func (s *site) nextProxy() (*Backend, func()) {
 		})
 		for i, backend := range backends {
 			currentCalls := backend.Stats.CurrentCalls.Load()
-			if currentCalls < min {
-				min = currentCalls
+			if currentCalls < minCall {
+				minCall = currentCalls
 				lastFinished := backend.Stats.LastFinished.Load()
 				if lastFinished < earliest {
 					earliest = lastFinished