check_cpu displays help

Very good plugin.

Last version 1.5
check_cpu should be followed by a elsif.

— check_linux_stats.pl.old 2016-01-06 22:06:17.000000000 +0100
+++ check_linux_stats.pl 2016-01-06 22:03:33.582324204 +0100
@@ -59,7 +59,7 @@
if($o_cpu){
check_cpu();
}
-if($o_context){
+elsif($o_context){
check_context_switch();
}
elsif($o_mem){

jfr