change variable name to something better

Signed-off-by: amghazanfari <a.m.ghazanfari76@gmail.com>

libcontainer/cgroups/fs/memory.go

@@ -282,11 +282,11 @@ func getPageUsageByNUMA(path string) (cgroups.PageUsageByNUMA, error) {
 		line := scanner.Text()
 		columns := strings.SplitN(line, " ", maxColumns)
 		for i, column := range columns {
-			key, val, isValidNumaStats := strings.Cut(column, "=")
+			key, val, ok := strings.Cut(column, "=")
 			// Some custom kernels have non-standard fields, like
 			//   numa_locality 0 0 0 0 0 0 0 0 0 0
 			//   numa_exectime 0
-			if !isValidNumaStats {
+			if !ok {
 				if i != 0 {
 					// The first column was already validated,
 					// so be strict to the rest.

libcontainer/cgroups/systemd/cpuset.go

@@ -21,13 +21,13 @@ func RangeToBits(str string) ([]byte, error) {
 		if r == "" {
 			continue
 		}
-		startRange, endRange, doesHaveEnd := strings.Cut(r, "-")
-		if doesHaveEnd {
-			start, err := strconv.ParseUint(startRange, 10, 32)
+		startr, endr, ok := strings.Cut(r, "-")
+		if ok {
+			start, err := strconv.ParseUint(startr, 10, 32)
 			if err != nil {
 				return nil, err
 			}
-			end, err := strconv.ParseUint(endRange, 10, 32)
+			end, err := strconv.ParseUint(endr, 10, 32)
 			if err != nil {
 				return nil, err
 			}
@@ -38,7 +38,7 @@ func RangeToBits(str string) ([]byte, error) {
 				bits.SetBit(bits, int(i), 1)
 			}
 		} else {
-			val, err := strconv.ParseUint(startRange, 10, 32)
+			val, err := strconv.ParseUint(startr, 10, 32)
 			if err != nil {
 				return nil, err
 			}

libcontainer/init_linux.go

@@ -259,8 +259,8 @@ func containerInit(t initType, config *initConfig, pipe *syncSocket, consoleSock
 // current processes's environment.
 func populateProcessEnvironment(env []string) error {
 	for _, pair := range env {
-		name, val, isValidEnv := strings.Cut(pair, "=")
-		if !isValidEnv {
+		name, val, ok := strings.Cut(pair, "=")
+		if !ok {
 			return errors.New("invalid environment variable: missing '='")
 		}
 		if name == "" {

libcontainer/utils/utils.go

@@ -101,8 +101,8 @@ func SearchLabels(labels []string, key string) (string, bool) {
 func Annotations(labels []string) (bundle string, userAnnotations map[string]string) {
 	userAnnotations = make(map[string]string)
 	for _, l := range labels {
-		name, value, isValidAnnotation := strings.Cut(l, "=")
-		if !isValidAnnotation {
+		name, value, ok := strings.Cut(l, "=")
+		if !ok {
 			continue
 		}
 		if name == "bundle" {