The last part of loading appointments and events is performed by four
"scan" functions called from io_load_app(). Failure in this part of data
load does not use io_load_error().
The four "scan" functions are changed to return an error message on
failure and NULL otherwise (the previous return value was not used).
Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
Lars HenriksenandLukas Fleischer
bf3dba2ae2