fix travis for gcov env
fix travis for gcov env

tboox/xmake,waruqi/xmake,tboox/xmake,tboox/xmake,waruqi/xmake,tboox/xmake,tboox/xmake,tboox/xmake,waruqi/xmake,waruqi/xmake,waruqi/xmake,waruqi/xmake,tboox/xmake,waruqi/xmake