only write ipmi of IpmiWrite is true

Signed-off-by: Christian Goll <cgoll@suse.com>

CHANGELOG.md

@@ -100,6 +100,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   profile. #852, #876, #883, #896, #903
 - During node discovery, prefer the primary network interface, if defined. #775
 - added general test framework which creates temporary directories on the fly
+- only write IPMI if write is true
+
 ## [4.4.0] 2023-01-18
 
 ### Added

overlays/wwinit/warewulf/init.d/50-ipmi

@@ -4,7 +4,7 @@
 
 export PATH=/usr/bin:/bin:/usr/sbin:/sbin
 
-if [ "$WWIPMI_WRITE" == "false" ]; then
+if [ "$WWIPMI_WRITE" != "true" ]; then
     echo "No write to IMPI configured"
     exit
 fi