Whitespace cleanup

* remove trailing whitespace
* remove empty lines at the end of files

plugins/cpu/multicpu1sec

@@ -17,7 +17,7 @@ graph="$plugin"
 style="AREA"
 cpus=$(grep -c ^processor /proc/cpuinfo)
 
-run_watchdog()  {                 # should also trap kill and term signals 
+run_watchdog()  {                 # should also trap kill and term signals
    kill -0 $(cat $pidfile) 2> /dev/null || rm -f $pidfile
 }
 
@@ -33,7 +33,7 @@ run_daemon()  {
    run_watchdog
    if [ -f $pidfile ]; then
       touch $pidfile
-   else   
+   else
       $pluginfull acquire &
    fi
 }
@@ -54,9 +54,9 @@ graph_title $graph
 graph_category 1sec
 graph_vlabel average cpu use %
 graph_scale no
-graph_total All CPUs 
+graph_total All CPUs
 update_rate 1
-graph_data_size custom 1d, 10s for 1w, 1m for 1t, 5m for 1y 
+graph_data_size custom 1d, 10s for 1w, 1m for 1t, 5m for 1y
 EOF
 cpun=0
 for ((i=0; i<$cpus; i++)); do