Let cpubar work in shell

data/conky_no_x11.conf

@@ -40,7 +40,7 @@ Frequency (in MHz): $freq
 Frequency (in GHz): $freq_g
 RAM Usage: $mem/$memmax - $memperc% ${membar 4}
 Swap Usage: $swap/$swapmax - $swapperc% ${swapbar 4}
-CPU Usage: $cpu%
+CPU Usage: $cpu% ${cpubar 4}
 Processes: $processes  Running: $running_processes
 File systems:
  / ${fs_used /}/${fs_size /}