grep(1) "-q" isn't portable (e.g., it won't work on Solaris 8), redirect

output to /dev/null instead.


git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1595 f882894a-f735-0410-b71e-b25c423dba1c

configure.in

@@ -762,7 +762,7 @@ if test -n "$ac_cv_ps_varlist" ; then
 	AC_DEFINE_UNQUOTED(PS_COLS,$ac_cv_ps_cols,
 		[Number of columns in ps command])
 	EXTRAS="$EXTRAS check_procs check_nagios"
-	if echo "$ac_cv_ps_varlist" | grep -q "procetime"; then
+	if echo "$ac_cv_ps_varlist" | grep "procetime" >/dev/null; then
 		AC_DEFINE(PS_USES_PROCETIME,"yes",
 		          [Whether the ps utility uses the "procetime" field])
 	fi