cmd: start linting fixes.

cmd/certexpiry/main.go

@@ -1,18 +1,17 @@
 package main
 
 import (
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"strings"
-	"time"
+    "crypto/x509"
+    "crypto/x509/pkix"
+    "flag"
+    "fmt"
+    "os"
+    "strings"
+    "time"
 
-	"git.wntrmute.dev/kyle/goutils/certlib"
-	"git.wntrmute.dev/kyle/goutils/die"
-	"git.wntrmute.dev/kyle/goutils/lib"
+    "git.wntrmute.dev/kyle/goutils/certlib"
+    "git.wntrmute.dev/kyle/goutils/die"
+    "git.wntrmute.dev/kyle/goutils/lib"
 )
 
 var warnOnly bool
@@ -80,21 +79,21 @@ func main() {
 	flag.DurationVar(&leeway, "t", leeway, "warn if certificates are closer than this to expiring")
 	flag.Parse()
 
-	for _, file := range flag.Args() {
-		in, err := ioutil.ReadFile(file)
-		if err != nil {
-			lib.Warn(err, "failed to read file")
-			continue
-		}
+    for _, file := range flag.Args() {
+        in, err := os.ReadFile(file)
+        if err != nil {
+            _, _ = lib.Warn(err, "failed to read file")
+            continue
+        }
 
-		certs, err := certlib.ParseCertificatesPEM(in)
-		if err != nil {
-			lib.Warn(err, "while parsing certificates")
-			continue
-		}
+        certs, err := certlib.ParseCertificatesPEM(in)
+        if err != nil {
+            _, _ = lib.Warn(err, "while parsing certificates")
+            continue
+        }
 
-		for _, cert := range certs {
-			checkCert(cert)
-		}
-	}
+        for _, cert := range certs {
+            checkCert(cert)
+        }
+    }
 }