Fix formatting.

redis/pool.go

@@ -47,7 +47,7 @@ var (
 // The following example shows how to use a pool in a web application. The
 // application creates a pool at application startup and makes it available to
 // request handlers using a global variable. The pool configuration used here
-// is an example, not a recommendation. 
+// is an example, not a recommendation.
 //
 //  func newPool(server, password string) *redis.Pool {
 //      return &redis.Pool{