Fix UTF8 cyrillic line ending issue

This fixes issue #15 in a very hacky way.
The pure cyrillic detection must be replaced with a
more generic approach. But for now I could not figure
it out. So this hack must do for now.

src/Output/Util.php

@@ -46,6 +46,7 @@ public static function trimEmptyLines(array $lines): array
      */
     public static function normalizeLineEndings(string $text): string
     {
-        return preg_replace('~(BSR_ANYCRLF)*\R~', "\n", $text);
+        $mod = preg_match('/[\p{Cyrillic}]/u', $text) ? 'u' : '';
+        return preg_replace('~(*BSR_UNICODE)\R~' . $mod, "\n", $text);
     }
 }

tests/cli/Output/UtilTest.php

@@ -72,12 +72,28 @@ public function testTrimEmptyLinesEmptyLinesAtTheEnd()
     /**
      * Tests Util::normalizeLineEndings
      */
-    public function testNormalizeLineEndings(): void
+    public function testNormalizeLineEndingsASCII(): void
     {
         $text = "test\ntest\r\ntest\r\ntest";
         $this->assertEquals("test\ntest\ntest\ntest", Util::normalizeLineEndings($text));
+    }
 
+    /**
+     * Tests Util::normalizeLineEndings
+     */
+    public function testNormalizeLineEndingsUTF8(): void
+    {
         $uft8text = "test\ftest\x0btest\r\ntest\x85test";
         $this->assertEquals("test\ntest\ntest\ntest\ntest", Util::normalizeLineEndings($uft8text));
     }
+
+    /**
+     * Tests Util::normalizeLineEndings
+     */
+    public function testNormalizeLineEndingsCyrillic(): void
+    {
+        $cyrillicText = "text: хо\ntext: хо\r\n";
+        $expected     = "text: хо\ntext: хо\n";
+        $this->assertEquals($expected, Util::normalizeLineEndings($cyrillicText));
+    }
 }