modules.influx: fix bad str formatting so DB is included in log messages
modules.influx: fix bad str formatting so DB is included in log messages

************* Module salt.modules.influx
salt/modules/influx.py:288: [E1305(too-many-format-args), user_create] Too many arguments for format string
salt/modules/influx.py:330: [E1305(too-many-format-args), user_chpass] Too many arguments for format string
salt/modules/influx.py:372: [E1305(too-many-format-args), user_remove] Too many arguments for format string

saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt,saltstack/salt