Sleep for longer, but try less often

This fixes an issue where the system can quickly run out of file
descriptors because they are accumulating faster than the kernel can
release them.

testutil/wait.go

@@ -1,19 +1,20 @@
 package testutil
 
 import (
-	"github.com/hashicorp/consul/consul/structs"
 	"testing"
 	"time"
+
+	"github.com/hashicorp/consul/consul/structs"
 )
 
 type testFn func() (bool, error)
 type errorFn func(error)
 
 func WaitForResult(test testFn, error errorFn) {
-	retries := 1000
+	retries := 100
 
 	for retries > 0 {
-		time.Sleep(10 * time.Millisecond)
+		time.Sleep(100 * time.Millisecond)
 		retries--
 
 		success, err := test()