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use flag.Arg

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This commit is contained in:
William Banfield
2022-05-11 10:03:05 -04:00
parent 8ebbc52b97
commit 0048bfe5a9
1 changed files with 3 additions and 3 deletions
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scripts/metricsgen/metricsdiff/metricsdiff.go
+3 -3
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@@ -48,15 +48,15 @@ type LabelDiff struct {
func main() {
flag.Parse()
if flag.NArg() != 2 {
log.Fatalf("Usage is %s <path1> <path2>, got %d arguments",
log.Fatalf("Usage is '%s <path1> <path2>', got %d arguments",
filepath.Base(os.Args[0]), flag.NArg())
}
fa, err := os.Open(os.Args[1])
fa, err := os.Open(flag.Arg(0))
if err != nil {
log.Fatalf("Open: %v", err)
}
defer fa.Close()
fb, err := os.Open(os.Args[2])
fb, err := os.Open(flag.Arg(1))
if err != nil {
log.Fatalf("Open: %v", err)
}