TorznabQuery: allow % in search term

src/Jackett/Models/TorznabQuery.cs

@@ -98,6 +98,7 @@ namespace Jackett.Models
                                                   || c == '['
                                                   || c == ']'
                                                   || c == '+'
+                                                  || c == '%'
                                       )).AsString();
                 return safetitle;
             }