I don't want to change that file as it will effect the settings for all users. Is there any option i can use from perl ssh expect module. While reading thro' Expect.pm module i can see ssh_option as below but i'm not sure how to make use of it for using any ssh options.
use fields qw(
host user password port no_terminal escape_char ssh_option
raw_pty exp_internal exp_debug log_file log_stdout restart_timeout_upon_receive
timeout terminator expect debug next_line before match after binary
);