Update dependencies

vendor/github.com/prometheus/procfs/proc_smaps.go

@@ -1,4 +1,4 @@
-// Copyright 2020 The Prometheus Authors
+// Copyright The Prometheus Authors
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
@@ -19,7 +19,6 @@ package procfs
 import (
 	"bufio"
 	"errors"
-	"fmt"
 	"os"
 	"regexp"
 	"strconv"
@@ -29,7 +28,7 @@ import (
 )
 
 var (
-	// match the header line before each mapped zone in `/proc/pid/smaps`.
+	// Match the header line before each mapped zone in `/proc/pid/smaps`.
 	procSMapsHeaderLine = regexp.MustCompile(`^[a-f0-9].*$`)
 )
 
@@ -117,7 +116,6 @@ func (p Proc) procSMapsRollupManual() (ProcSMapsRollup, error) {
 func (s *ProcSMapsRollup) parseLine(line string) error {
 	kv := strings.SplitN(line, ":", 2)
 	if len(kv) != 2 {
-		fmt.Println(line)
 		return errors.New("invalid net/dev line, missing colon")
 	}
 
@@ -127,7 +125,7 @@ func (s *ProcSMapsRollup) parseLine(line string) error {
 	}
 
 	v := strings.TrimSpace(kv[1])
-	v = strings.TrimRight(v, " kB")
+	v = strings.TrimSuffix(v, " kB")
 
 	vKBytes, err := strconv.ParseUint(v, 10, 64)
 	if err != nil {
@@ -135,12 +133,12 @@ func (s *ProcSMapsRollup) parseLine(line string) error {
 	}
 	vBytes := vKBytes * 1024
 
-	s.addValue(k, v, vKBytes, vBytes)
+	s.addValue(k, vBytes)
 
 	return nil
 }
 
-func (s *ProcSMapsRollup) addValue(k string, vString string, vUint uint64, vUintBytes uint64) {
+func (s *ProcSMapsRollup) addValue(k string, vUintBytes uint64) {
 	switch k {
 	case "Rss":
 		s.Rss += vUintBytes