Fix discovery skipping of linuxsampler and fluidsynth based plugs

source/discovery/carla-discovery.cpp

@@ -1527,6 +1527,20 @@ int main(int argc, char* argv[])
     const char* const filename = argv[2];
     const PluginType  type     = getPluginTypeFromString(stype);
 
+    CarlaString filenameStr(filename);
+    filenameStr.toLower();
+
+    if (filenameStr.contains("fluidsynth", true))
+    {
+        DISCOVERY_OUT("info", "skipping fluidsynth based plugin");
+        return 0;
+    }
+    if (filenameStr.contains("linuxsampler", true) || filenameStr.endsWith("ls16.so"))
+    {
+        DISCOVERY_OUT("info", "skipping linuxsampler based plugin");
+        return 0;
+    }
+
     bool openLib = false;
     void* handle = nullptr;
 
@@ -1550,20 +1564,6 @@ int main(int argc, char* argv[])
             print_lib_error(filename);
             return 1;
         }
-
-        CarlaString filenameStr(filename);
-        filenameStr.toLower();
-
-        if (filenameStr.contains("fluidsynth", true))
-        {
-            DISCOVERY_OUT("info", "skipping fluidsynth based plugin");
-            return 0;
-        }
-        if (filenameStr.contains("linuxsampler", true) || filenameStr.endsWith("ls16.so"))
-        {
-            DISCOVERY_OUT("info", "skipping linuxsampler based plugin");
-            return 0;
-        }
     }
 
     // never do init for dssi-vst, takes too long and it's crashy