fixup! ci: provide means to override build-meta output

.github/validate-overrides.sh

@@ -11,11 +11,12 @@ OVERRIDES_DIR="$SCRIPT_DIR/overrides/build-meta"
 FILES_WITH_TWO_LINES=""
 
 # Find all files which contain at lest two lines
-for file in $(find "$OVERRIDES_DIR" -type f); do
+while IFS= read -r -d '' file
+do
 	if [ "$(wc -l < "$file")" -gt 1 ]; then
 		FILES_WITH_TWO_LINES="$FILES_WITH_TWO_LINES $file"
 	fi
-done
+done <   <(find "$OVERRIDES_DIR" -type f -print0)
 
 # Check for newlines in overrides
 if [ -n "$FILES_WITH_TWO_LINES" ]; then