Simplify code

collector/meminfo_linux.go

@@ -39,7 +39,7 @@ func parseMemInfo(r io.Reader) (map[string]float64, error) {
 	var (
 		memInfo = map[string]float64{}
 		scanner = bufio.NewScanner(r)
-		re      = regexp.MustCompile("\\((.*)\\)")
+		re      = regexp.MustCompile(`\((.*)\)`)
 	)
 
 	for scanner.Scan() {

collector/meminfo_numa_linux.go

@@ -124,7 +124,7 @@ func parseMemInfoNuma(r io.Reader) ([]meminfoMetric, error) {
 	var (
 		memInfo []meminfoMetric
 		scanner = bufio.NewScanner(r)
-		re      = regexp.MustCompile("\\((.*)\\)")
+		re      = regexp.MustCompile(`\((.*)\)`)
 	)
 
 	for scanner.Scan() {

collector/netdev_linux_test.go

@@ -47,7 +47,7 @@ func TestNetDevStats(t *testing.T) {
 		t.Errorf("want count of devices to be %d, got %d", want, got)
 	}
 
-	if _, ok := netStats["veth4B09XN"]["transmit_bytes"]; ok != false {
+	if _, ok := netStats["veth4B09XN"]["transmit_bytes"]; ok {
 		t.Error("want fixture interface veth4B09XN to not exist, but it does")
 	}
 }