Function transmission_sys::tr_sessionSetIncompleteFileNamingEnabled

pub unsafe extern "C" fn tr_sessionSetIncompleteFileNamingEnabled(
    session: *mut tr_session, 
    arg1: bool
)

@brief When enabled, newly-created files will have ".part" appended to their filename until the file is fully downloaded

This is not retroactive -- toggling this will not rename existing files. It only applies to new files created by Transmission after this API call.

@see tr_sessionIsIncompleteFileNamingEnabled()