cmd/preprofile: remove deleted -v flag and gofmt

Author: And-ZJ

src/cmd/preprofile/main.go

@@ -8,7 +8,7 @@
 //
 // Usage:
 //
-//	go tool preprofile [-v] [-o output] -i input
+//	go tool preprofile [-o output] -i input
 //
 //
 
@@ -25,14 +25,14 @@ import (
 )
 
 func usage() {
-	fmt.Fprintf(os.Stderr, "usage: go tool preprofile [-v] [-o output] -i input\n\n")
+	fmt.Fprintf(os.Stderr, "usage: go tool preprofile [-o output] -i input\n\n")
 	flag.PrintDefaults()
 	os.Exit(2)
 }
 
 var (
-	output  = flag.String("o", "", "output file path")
-	input   = flag.String("i", "", "input pprof file path")
+	output = flag.String("o", "", "output file path")
+	input  = flag.String("i", "", "input pprof file path")
 )
 
 func preprocess(profileFile string, outputFile string) error {