fix auth; update deps

vendor/modernc.org/libc/dmesg.go

@@ -10,7 +10,6 @@ package libc // import "modernc.org/libc"
 import (
 	"fmt"
 	"os"
-	"path/filepath"
 	"strings"
 	"time"
 )
@@ -18,7 +17,6 @@ import (
 const dmesgs = true
 
 var (
-	pid  = fmt.Sprintf("[%v %v] ", os.Getpid(), filepath.Base(os.Args[0]))
 	logf *os.File
 )
 
@@ -28,7 +26,7 @@ func init() {
 		panic(err.Error())
 	}
 
-	dmesg("%v", time.Now())
+	dmesg("==== dmesg init() %v", time.Now())
 }
 
 func dmesg(s string, args ...interface{}) {
@@ -43,3 +41,9 @@ func dmesg(s string, args ...interface{}) {
 		fmt.Fprintln(logf, s)
 	}
 }
+
+func dmesgFinish() {
+	dmesg("==== dmesgFinish() %v", time.Now())
+	logf.Sync()
+	logf.Close()
+}