Fixed: Trim spaces and empty values in Proxy Bypass List

(cherry picked from commit 846333ddf0d9da775c80d004fdb9b41e700ef359)

Closes #3688

src/NzbDrone.Common/Http/Proxy/HttpProxySettings.cs

@@ -1,3 +1,4 @@
+using System;
 using NzbDrone.Common.Extensions;
 
 namespace NzbDrone.Common.Http.Proxy
@@ -29,7 +30,8 @@ namespace NzbDrone.Common.Http.Proxy
             {
                 if (!string.IsNullOrWhiteSpace(BypassFilter))
                 {
-                    var hostlist = BypassFilter.Split(',');
+                    var hostlist = BypassFilter.Split(',', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+
                     for (var i = 0; i < hostlist.Length; i++)
                     {
                         if (hostlist[i].StartsWith("*"))
@@ -41,7 +43,7 @@ namespace NzbDrone.Common.Http.Proxy
                     return hostlist;
                 }
 
-                return new string[] { };
+                return Array.Empty<string>();
             }
         }