"acpi" plugin issue

[LeererMann]

Describe the bug

~:/etc/munin/plugins # munin-run acpi
thermal_zone0.value 20
cat: /sys/class/thermal/thermal_zone1/temp: No data available
thermal_zone1.value 0

To Reproduce

Run/use "acpi" on a system where temp in a zone does not contain data.

Expected behavior

No error message.

Screenshots & Logs

N/A

Desktop (please complete the following information):

Suse Tumbleweed on a MINISFORUM Venus Series UM790 Pro Mini PC AMD Ryzen 9 7940HS
unbound-munin-1.22.0-1.1.noarch
munin-node-2.0.72-9.1.noarch
munin-2.0.72-9.1.noarch

Additional context

Here is a patch for the "acpi" plugin. Without the patch this can occur:

~:/etc/munin/plugins # munin-run acpi
thermal_zone0.value 20
cat: /sys/class/thermal/thermal_zone1/temp: No data available
thermal_zone1.value 0
~:/etc/munin/plugins #

When temp in the zone does not contain data. With the patch normal behavior:

~:/etc/munin/plugins # munin-run acpi
thermal_zone0.value 20
thermal_zone1.value 0
~:/etc/munin/plugins # 

Patch:

-- /usr/lib/munin/plugins/acpi.org    2024-09-29 15:48:45.000000000 -0500
+++ /usr/lib/munin/plugins/acpi    2025-01-04 12:40:55.637512697 -0600
@@ -58,7 +58,7 @@
 
 do_ () { # Fetch
     for ZONE in $ATZ; do
-         TEMP=$(cat "$ZONE/temp")
+         TEMP=$(cat "$ZONE/temp" 2>/dev/null)
          echo "$(basename "$ZONE").value $(echo "$TEMP" | awk '{print $1/1000}')"
     done
     exit 0