[firebirdsql] to change sysdba password

# Prerequisite

- sysdba basic password id 'masterkey'

- I'll try to change basic password to '12345678'.

# firebirdsqlDir/bin>gsec -user sysdba -password masterkey

GSEC> modify sysdba -pw 12345678;

or

# firebirdsqlDir\bin> gsec -user sysdba -pass masterkey -mo sysdba -pw 12345678

# attention

- FirebirdSql can recognize just 8 letters for passwords.

- If you input over 8 letters, it just can recognize the first 8 letters.