Merge pull request #6333 from Security-Onion-Solutions/kilo

Correct if check to inline the command instead of checking for emptin…

salt/common/tools/sbin/soup

@@ -841,8 +841,7 @@ apply_hotfix() {
   if [[ "$INSTALLEDVERSION" == "2.3.90" && "$HOTFIXVERSION" == "WAZUH" ]] ; then
     FILE="/nsm/wazuh/etc/ossec.conf"
     echo "Detecting if ossec.conf needs corrected..."
-    WAZUHHEADER=$(head -1 $FILE | grep "xml version")
-    if [[ ! -z "$WAZUHHEADER" ]]; then
+    if head -1 $FILE | grep -q "xml version"; then
       echo "$FILE has an XML header; removing"
       sed -i 1d $FILE
       so-wazuh-restart