Use a more portable ps(1) call in the clamav script.

-e means all processes are selected on Linux's ps, while on the BSDs
and OS X it means the environment should be printed along with the
commands.

Replacing -e with -a -x should work on all platforms according to the
Linux, OS X, FreeBSD, OpenBSD and NetBSD man pages.

REVIEW:		106111

avscripts/kmail_clamav.sh

@@ -35,7 +35,7 @@ export TEMPFILE
 cat > $TEMPFILE
 
 # check for a running daemon
-if [ "`ps -eo comm|grep clamd`" = "clamd" ]; then
+if [ "`ps -axo comm|grep clamd`" = "clamd" ]; then
     chmod a+r $TEMPFILE
     CLAMCOMANDO="clamdscan --stdout --no-summary "
 else