Add a new "-f" option to read the password from a file,
instead of command line. (closes: #395)
.IR sql_driver ]
.RB [ \-b
.IR database ]
+.RB [ \-f
+.IR file ]
.RB [ \-h
.IR host ]
.RB [ \-u
Driver to use: mysql, pg, oracle.
.IP "\-b \fIdatabase\fP"
Name of the database to use.
+.IP "\-f \fIfile\fP"
+Read password from file, instead of command line.
.IP "\-h \fIhost\fP"
Connect to host.
.IP "\-u \fIuser\fP"