Fix leak of url in rest_proxy_call_raw_async_valist
Fix leak of url in rest_proxy_call_raw_async_valist

Distrotech/librest,ThomasBollmeier/librest-oauth-proxy,GNOME/librest,ThomasBollmeier/librest-oauth-proxy,GNOME/librest,GNOME/librest,Distrotech/librest