[add_sorting_to_archiving] Add natural sorting to ArchivableFilesFinder.

src/Composer/Package/Archiver/ArchivableFilesFinder.php

@@ -84,7 +84,8 @@ class ArchivableFilesFinder extends \FilterIterator
             ->in($sources)
             ->filter($filter)
             ->ignoreVCS(true)
-            ->ignoreDotFiles(false);
+            ->ignoreDotFiles(false)
+            ->sortByName(true);
 
         parent::__construct($this->finder->getIterator());
     }

tests/Composer/Test/Package/Archiver/ArchivableFilesFinderTest.php

@@ -48,36 +48,36 @@ class ArchivableFilesFinderTest extends TestCase
             'A/prefixD.foo',
             'A/prefixE.foo',
             'A/prefixF.foo',
-            'B/sub/prefixA.foo',
-            'B/sub/prefixB.foo',
-            'B/sub/prefixC.foo',
-            'B/sub/prefixD.foo',
-            'B/sub/prefixE.foo',
-            'B/sub/prefixF.foo',
             'C/prefixA.foo',
             'C/prefixB.foo',
             'C/prefixC.foo',
             'C/prefixD.foo',
             'C/prefixE.foo',
             'C/prefixF.foo',
-            'D/prefixA',
+            'B/sub/prefixA.foo',
-            'D/prefixB',
+            'B/sub/prefixB.foo',
-            'D/prefixC',
+            'B/sub/prefixC.foo',
-            'D/prefixD',
+            'B/sub/prefixD.foo',
-            'D/prefixE',
+            'B/sub/prefixE.foo',
-            'D/prefixF',
+            'B/sub/prefixF.foo',
             'E/subtestA.foo',
             'F/subtestA.foo',
             'G/subtestA.foo',
             'H/subtestA.foo',
+            'D/prefixD',
+            'D/prefixA',
+            'D/prefixB',
+            'D/prefixC',
+            'D/prefixE',
+            'D/prefixF',
             'I/J/subtestA.foo',
-            'K/dirJ/subtestA.foo',
             'toplevelA.foo',
             'toplevelB.foo',
             'prefixA.foo',
             'prefixB.foo',
             'prefixC.foo',
             'prefixD.foo',
+            'K/dirJ/subtestA.foo',
             'prefixE.foo',
             'prefixF.foo',
             'parameters.yml',