[bot] AutoMerging: merge all upstream's changes:

* https://github.com/coolsnowwolf/lede:
  autocore/x86: Fixes CPU usage display issue (coolsnowwolf#11614)

package/lean/autocore/files/x86/index.htm

@@ -52,7 +52,7 @@
 
 		local user_info = luci.sys.exec("cat /proc/net/arp | grep '0x2' | wc -l") or 0
 
-		local cpu_usage = (luci.sys.exec("expr 100 - $(top -n 1 | grep 'CPU:' | awk -F '%' '{print$4}' | awk -F ' ' '{print$2}' | awk '{print int($1 + 0.5)}')") or "6") .. "%"
+		local cpu_usage = (luci.sys.exec("expr 100 - $(top -n 1 | grep -E '^CPU:' | awk -F '%' '{print$4}' | awk -F ' ' '{print$2}' | awk '{print int($1 + 0.5)}')") or "6") .. "%"
 
 		local rv = {
 			cpuusage    = cpu_usage,