error in documentation

[Laurent GILBERT]

Dear Sirs,

I'm thinking I found a small mistake in the documentation 
"https://www.freebsd.org/doc/en/books/handbook/firewalls-ipfw.html", 
"30.4.1. Enabling IPFW" :

"sysrc -f /etc/sysctl.conf net.inet.ip.fw.verbose_limit=5" doesn't work 
on FREEBSD 12 :

root at srv01:~ # sysrc -f /etc/sysctl.conf net.inet.ip.fw.verbose_limit= 5
sysrc: net.inet.ip.fw.verbose_limit: name contains characters not 
allowed in shell

The character "." doesn't appear to be a legal char according to the the 
content of VALID_VARNAME_CHARS variable.

Best regards,

Laurent GILBERT.



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