Fix mpeg-ts detection

When the container name is `mpeg`, it means it is MPEG-PS, while the TS container should have the explicit name `mpeg-ts`.

Signed-off-by: gnattu <gnattuoc@me.com>

MediaBrowser.MediaEncoding/Probing/ProbeResultNormalizer.cs

@@ -280,8 +280,8 @@ namespace MediaBrowser.MediaEncoding.Probing
                     splitFormat[i] = "mpeg";
                 }
 
-                // Handle MPEG-2 container
-                else if (string.Equals(splitFormat[i], "mpeg", StringComparison.OrdinalIgnoreCase))
+                // Handle MPEG-TS container
+                else if (string.Equals(splitFormat[i], "mpegts", StringComparison.OrdinalIgnoreCase))
                 {
                     splitFormat[i] = "ts";
                 }