Revert "Dependency updates. (#14033)" (#14304)

This reverts commit f14c79f170.

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

@@ -16,7 +16,6 @@ package procfs
 import (
 	"bufio"
 	"bytes"
-	"errors"
 	"regexp"
 
 	"github.com/prometheus/procfs/internal/util"
@@ -24,11 +23,10 @@ import (
 
 // Regexp variables
 var (
-	rPos          = regexp.MustCompile(`^pos:\s+(\d+)$`)
-	rFlags        = regexp.MustCompile(`^flags:\s+(\d+)$`)
-	rMntID        = regexp.MustCompile(`^mnt_id:\s+(\d+)$`)
-	rInotify      = regexp.MustCompile(`^inotify`)
-	rInotifyParts = regexp.MustCompile(`^inotify\s+wd:([0-9a-f]+)\s+ino:([0-9a-f]+)\s+sdev:([0-9a-f]+)(?:\s+mask:([0-9a-f]+))?`)
+	rPos     = regexp.MustCompile(`^pos:\s+(\d+)$`)
+	rFlags   = regexp.MustCompile(`^flags:\s+(\d+)$`)
+	rMntID   = regexp.MustCompile(`^mnt_id:\s+(\d+)$`)
+	rInotify = regexp.MustCompile(`^inotify`)
 )
 
 // ProcFDInfo contains represents file descriptor information.
@@ -98,21 +96,15 @@ type InotifyInfo struct {
 
 // InotifyInfo constructor. Only available on kernel 3.8+.
 func parseInotifyInfo(line string) (*InotifyInfo, error) {
-	m := rInotifyParts.FindStringSubmatch(line)
-	if len(m) >= 4 {
-		var mask string
-		if len(m) == 5 {
-			mask = m[4]
-		}
-		i := &InotifyInfo{
-			WD:   m[1],
-			Ino:  m[2],
-			Sdev: m[3],
-			Mask: mask,
-		}
-		return i, nil
+	r := regexp.MustCompile(`^inotify\s+wd:([0-9a-f]+)\s+ino:([0-9a-f]+)\s+sdev:([0-9a-f]+)\s+mask:([0-9a-f]+)`)
+	m := r.FindStringSubmatch(line)
+	i := &InotifyInfo{
+		WD:   m[1],
+		Ino:  m[2],
+		Sdev: m[3],
+		Mask: m[4],
 	}
-	return nil, errors.New("invalid inode entry: " + line)
+	return i, nil
 }
 
 // ProcFDInfos represents a list of ProcFDInfo structs.