fix non-linux builds

irc/utils/net_nonlinux.go

@@ -0,0 +1,14 @@
+// +build !linux
+
+package utils
+
+import (
+	"fmt"
+	"net"
+)
+
+// Output a description of a connection that can identify it to other systems
+// administration tools.
+func DescribeConn(conn net.Conn) (description string) {
+	return fmt.Sprintf("%s <-> %s", conn.LocalAddr().String(), conn.RemoteAddr().String())
+}