Ensure that xml files exist in lint dirs

Scripts/7D2D-Manage.bash

@@ -272,6 +272,7 @@ start_server() {
     lint_dirs=("${server_directory}" "${server_directory}/Saves")
     if which xmllint >/dev/null 2>&1; then
         for dir in "${lint_dirs[@]}"; do
+            if ls "${dir}"/*.xml >/dev/null 2>&1; then
                 for xml_file in "${dir}"/*.xml; do
                     log "info" "Linting $(important "${xml_file}")"
                     if ! xmllint "${xml_file}" >/dev/null; then
@@ -279,6 +280,7 @@ start_server() {
                         return 1
                     fi
                 done
+            fi
         done
     else
         log "warning" "$(important "xmllint") not installed or not in PATH, skipping lint check"