issue with pf syntax parser

[Joseph A Borg]

I have something like this in pf.conf:

services                        = "{ 
                                                        ssh,                    
                                        \
                                                        http, https, 8000, 
8080, 8088,                  \
                                                        smtp, pop3, pop3s, 
imap, imaps,                 \
                                                        submission, 465,        
                                        \
                                                        domain, ntp             
                                        \
                                                }"

if there’s white space after the back slash the parser barfs by not creating 
the macro and then raising an error when it’s first used.

I would assume this to be an inconvenience for the user as it’s not always 
possible to check whitespace after the backslash

regards