Instead of bailing out without any hint, show an error message if the temporary file we use in calcurse-upgrade already exists. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
Instead of bailing out without any hint, show an error message if the temporary file we use in calcurse-upgrade already exists. Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>