Update host list format to be

<ip_address>,<name>
to make end user display and interpretation easier

src/manager.rs

@@ -37,7 +37,7 @@ impl Manager {
             #[cfg(any(target_os="windows"))] {
                 result = Command::new("c:/windows/system32/ping.exe").arg(request.target.to_string())
                     .arg("-n 1")
-                    .arg("-w 10")
+                    .arg(format!("-w {}", crate::SECONDS_BETWEEN_PING))
                     .arg("-4")
                     .output().unwrap().status.code().unwrap_or(255);
                 success = result == WIN_PING_SUCCESS as i32;;
@@ -46,7 +46,7 @@ impl Manager {
                 result = Command::new("/usr/bin/ping").arg(request.target.to_string())
                     .arg("-c 1")
                     .arg("-4")
-                    .arg("-w 10")
+                    .arg(format!("-w {}", SECONDS_BETWEEN_PING))
                     .arg("-W 1")
                     .output().unwrap().status.code().unwrap_or(255);
                 success = result == LIN_PING_SUCCESS as i32;
@@ -64,5 +64,4 @@ impl Manager {
             // println!("Attempt for for {}", local_request.target);
         });
     }
-
 }