Allow spaces as legal filename characters

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Changed
+
+- Retain whitespaces in imported file names.
+
 ## 2.0.0 (2022-10-02)
 
 ### Added

PassepartoutLibrary/Sources/PassepartoutUtils/Utils/Utils+Strings.swift

@@ -73,7 +73,7 @@ extension CharacterSet {
     public static let filename: CharacterSet = {
         var chars: CharacterSet = .decimalDigits
         let english = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-        let symbols = "-_."
+        let symbols = " -_."
         chars.formUnion(CharacterSet(charactersIn: english))
         chars.formUnion(CharacterSet(charactersIn: english.lowercased()))
         chars.formUnion(CharacterSet(charactersIn: symbols))