cfg_replace_option parameters should be quoted

[Nidroide]

Cannot setup instance having space in LDAP_SECURITY_PRINCIPAL environment variable. The problem is fixed double quoting the second parameter while calling cfg_replace_option in init.sh:

cfg_replace_option ldap.synchronization.java.naming.security.principal "$LDAP_SECURITY_PRINCIPAL" $LDAP_CONFIG_FILE

The same should be done for other parameters too.