faq/pf/scrub.html: missing `a'

Index: faq/pf/scrub.html
===================================================================
RCS file: /cvs/www/faq/pf/scrub.html,v
retrieving revision 1.14
diff -u -r1.14 scrub.html
--- faq/pf/scrub.html	31 Oct 2006 07:18:59 -0000	1.14
+++ faq/pf/scrub.html	29 Jul 2008 02:46:19 -0000
@@ -76,7 +76,7 @@
 (properly) rejected by <tt>scrub</tt>.  This can be resolved by use of the
 <tt>no-df</tt> option.  Another reason is some multi-player games have
 connection problems passing through PF with <tt>scrub</tt> enabled.
-Other than these somewhat unusual cases, scrubbing all packets is
+Other than these somewhat unusual cases, scrubbing all packets is a
 <i>highly recommended</i> practice.
 
 <p>