Fix syntax error in manpage.

--- clamsmtp/doc/clamsmtpd.8.orig	2008-11-30 13:54:38.000000000 +0100
+++ clamsmtp/doc/clamsmtpd.8	2008-11-30 13:54:46.000000000 +0100
@@ -146,7 +146,7 @@
 machine under heavy load. Secondly as with running any program there are 
 security implications to be considered. 
 .Pp
-.Please consider the above carefully before implementing a virus action. 
+Please consider the above carefully before implementing a virus action. 
 .Pp
 The script is run without its output being logged, or return value being 
 checked. Because of this you should test it thoroughly. Make sure it runs