Fix xargs writing race condition

inventory.sh

@@ -43,13 +43,13 @@ get_confs() {
     cd - 1>/dev/null
 }
 
-# Find all the .htaccess uder each DocumentRoot
+# Find all the .htaccess under each DocumentRoot
 get_htaccess() {
-    xargs -P 0 \
+    xargs \
         awk 'sub("^[[:space:]]*DocumentRoot[[:space:]]*", "")' \
         < "$confs" \
         | sort -u \
-        | xargs -P 0 -I _ find _ -name .htaccess || true
+        | xargs -I _ find _ -type f -name .htaccess || true
 }
 
 # Put different type of configs in different files