minor improvements from static code analysis

go.sum

@@ -1,3 +1,4 @@
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/eapache/queue.v1 v1.1.0 h1:EldqoJEGtXYiVCMRo2C9mePO2UUGnYn2+qLmlQSqPdc=
 gopkg.in/eapache/queue.v1 v1.1.0/go.mod h1:wNtmx1/O7kZSR9zNT1TTOJ7GLpm3Vn7srzlfylFbQwU=

queue_test.go

@@ -4,16 +4,13 @@ import (
 	"runtime"
 	"sync"
 	"testing"
-	"time"
 )
 
 var testQ = NewQueue()
 
 func testAdd(n int) {
 	for i := 0; i < n; i++ {
-		testQ.Add(func() {
-			time.Sleep(1)
-		})
+		testQ.Add(func() {})
 	}
 }
 

scheduler.go

@@ -33,10 +33,7 @@ func SimpleScheduler(tq *TaskQueue) bool {
 			queued++
 		}
 	}
-	if queued > 0 {
-		return true
-	}
-	return false
+	return (queued > 0)
 }
 
 // TimeSliceScheduler attempts to give tasks a fair share of the Stats()

stats.go

@@ -74,7 +74,7 @@ func (s *Stat) Start() (start time.Time) {
 // This will fluctuate between 90-100% of the window size set when the state
 // was created, as internal buckets roll over.
 func (s *Stat) Duration() time.Duration {
-	return time.Now().Sub(s.Start())
+	return time.Since(s.Start())
 }
 
 // Rate returns the flow rate of this counter, which is the current rolling

uintslice.go

@@ -11,10 +11,7 @@ func (list UIntSlice) Len() int {
 
 // Less helps fulfill sort.Interface.
 func (list UIntSlice) Less(i, j int) bool {
-	if list[i] <= list[j] {
-		return true
-	}
-	return false
+	return list[i] <= list[j]
 }
 
 // Swap helps fulfill sort.Interface