Solaris native system sshd does not allow below options (excluded in the conditional if) - fails with the following errors;
/etc/ssh/sshd_config: line 90: Bad configuration option: GSSAPICleanupCredentials
/etc/ssh/sshd_config: line 93: Bad configuration option: UsePAM
/etc/ssh/sshd_config: line 96: Bad configuration option: AcceptEnv
/etc/ssh/sshd_config: line 97: Bad configuration option: AcceptEnv
/etc/ssh/sshd_config: line 98: Bad configuration option: AcceptEnv
/etc/ssh/sshd_config: line 100: Bad configuration option: UseDNS