message: Fix pnet_datalink dependency for crates.io
diff: @@ -20,7 +20,7 @@ pnet_base = { path = "../pnet_base", version = "0.27.0" }
  pnet_sys = { path = "../pnet_sys", version = "0.27.0" }
  pcap = { version = "0.7", optional = true }
  -netmap_sys = { version = ">=0.0", optional = true, features = ["netmap_with_libs"] }
  +netmap_sys = { version = "0.1", optional = true, features = ["netmap_with_libs"] }
  serde = { version = "~1", optional = true, default-features = false, features = [ "derive" ] }
  [target.'cfg(windows)'.dependencies]
  