minor #6183 Simplify DiffConsoleFormatter (kubawerlos)

This PR was merged into the master branch.

Discussion
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Simplify DiffConsoleFormatter

This is actually only place where any `Preg` method is called with an array (of patterns), not a string.

To be continued: #6184.

Commits
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cf4dcc4 Simplify DiffConsoleFormatter

src/Differ/DiffConsoleFormatter.php

@@ -58,11 +58,7 @@ static function (string $line) use ($isDecorated, $lineTemplate): string {
                         if ($isDecorated) {
                             $count = 0;
                             $line = Preg::replaceCallback(
-                                [
-                                    '/^(\+.*)/',
-                                    '/^(\-.*)/',
-                                    '/^(@.*)/',
-                                ],
+                                '/^([+-@].*)/',
                                 static function (array $matches): string {
                                     if ('+' === $matches[0][0]) {
                                         $colour = 'green';