cmd: args parsing

go.mod

@@ -8,7 +8,6 @@ require (
 	github.com/ameshkov/dnsstamps v1.0.3
 	github.com/beefsack/go-rate v0.0.0-20220214233405-116f4ca011a0
 	github.com/bluele/gcache v0.0.2
-	github.com/jessevdk/go-flags v1.6.1
 	github.com/miekg/dns v1.1.58
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/quic-go/quic-go v0.44.0

go.sum

@@ -26,8 +26,6 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/pprof v0.0.0-20240130152714-0ed6a68c8d9e h1:E+3PBMCXn0ma79O7iCrne0iUpKtZ7rIcZvoz+jNtNtw=
 github.com/google/pprof v0.0.0-20240130152714-0ed6a68c8d9e/go.mod h1:czg5+yv1E0ZGTi6S6vVK1mke0fV+FaUhNGcd6VRS9Ik=
-github.com/jessevdk/go-flags v1.6.1 h1:Cvu5U8UGrLay1rZfv/zP7iLpSHGUZ/Ou68T0iX1bBK4=
-github.com/jessevdk/go-flags v1.6.1/go.mod h1:Mk8T1hIAWpOiJiHa9rJASDK2UGWji0EuPGBnNLMooyc=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=