duplicityBackup: MySQL password is present on the command line which is insecure

[C-Duv]

The script uses the MySQL password in the command line which can make the mysql client trigger the following warning on STDERR:

Warning: Using a password on the command line interface can be insecure.

Script must be adapted to avoid using this insecure way of passing MySQL password (and then avoid the warning).

[C-Duv]

Possible solution, use the --defaults-extra-file option by writing, on the fly, a temporary .cnf file with MySQL credentials.

Usage:

--defaults-extra-file=/path/to/workingBasePath/service_name.cnf

Example file:

[client]
host     = localhost
user     = backup-user
password = secret

[C-Duv]

78f7281 should fix this problem.