:green_heart: added verbose message to check AppVeyor build
:green_heart: added verbose message to check AppVeyor build

theodelrieu/json,stanmihai4/json,hunter-packages/json,Newbrick/json,nlohmann/json,stanmihai4/json,kaidokert/json,Newbrick/json,hunter-packages/json,nlohmann/json,kaidokert/json,theodelrieu/json,nlohmann/json,stanmihai4/json,hunter-packages/json,kaidokert/json,Newbrick/json