[clang-tidy] use braced initialization list (#883)
[clang-tidy] use braced initialization list (#883)

Found with modernize-return-braced-init-list

Signed-off-by: Rosen Penev <cd9d359349c2d33dfd3bf458517d943871c7c054@gmail.com>
graehl/yaml-cpp,loot/yaml-cpp,graehl/yaml-cpp,dand-oss/yaml-cpp,graehl/yaml-cpp,loot/yaml-cpp,jbeder/yaml-cpp,jbeder/yaml-cpp,WrinklyNinja/yaml-cpp,loot/yaml-cpp,jbeder/yaml-cpp,graehl/yaml-cpp,WrinklyNinja/yaml-cpp,jbeder/yaml-cpp,dand-oss/yaml-cpp,dand-oss/yaml-cpp,WrinklyNinja/yaml-cpp,WrinklyNinja/yaml-cpp,graehl/yaml-cpp,jbeder/yaml-cpp,dand-oss/yaml-cpp,loot/yaml-cpp,dand-oss/yaml-cpp