Update pool/const.go

Co-authored-by: Alexander Tulchinskiy  <[email protected]>

Author: KaymeKaydex

pool/const.go

@@ -32,7 +32,7 @@ const (
 type Role uint32
 
 const (
-	// UnknownRole - value when the connection pool was unable to detect the instance mode.
+	// UnknownRole - the connection pool was unable to detect the instance mode.
 	UnknownRole Role = iota // unknown
 	// MasterRole - the instance is read-write mode.
 	MasterRole // master