fix error C2440: 'initializing': cannot convert from 'void' to 'bool' when engine versio is < 5.2

Source/SenseGlove/Private/SenseGlove/GameFramework/SGPawn.cpp

@@ -1141,6 +1141,7 @@ void ASGPawn::Grab(USGVirtualHandComponent* Hand, AActor* Actor)
         Pimpl->DisableActorPhysics(Actor);
     }
 
+#if ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 2
     const bool bAttached = Actor->AttachToComponent(Hand, MoveTemp(AttachmentRules), SocketName);
     if (bAttached)
     {
@@ -1150,6 +1151,10 @@ void ASGPawn::Grab(USGVirtualHandComponent* Hand, AActor* Actor)
     {
         SGLOG_ERROR("Failed to grab the actor with the left hand!", Actor, SocketName);
     }
+#else
+    Actor->AttachToComponent(Hand, MoveTemp(AttachmentRules), SocketName);
+    LeftHandGrabState.GrabbedActor = Actor;
+#endif  /* ENGINE_MAJOR_VERSION >= 5 && ENGINE_MINOR_VERSION >= 2 */
 }
 
 void ASGPawn::ReleaseLeft()