minor symfony#51018 [Routing] Use vsprintf instead of sprintf + unpacking (fancyweb)

This PR was merged into the 5.4 branch.

Discussion
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[Routing] Use vsprintf instead of sprintf + unpacking

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

A very small PR "reverting" symfony#50565 and applying vimeo/psalm#9873 (comment) suggestion of using vsprintf instead.

Targeting 5.4 since it "reverts" the last one but we could also decide to target 6.4.

Commits
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2f6a355 [Routing] Use vsprintf instead of sprintf + unpacking

Author: nicolas-grekas

src/Symfony/Component/Routing/Matcher/Dumper/CompiledUrlMatcherDumper.php

@@ -139,8 +139,7 @@ private function generateCompiledRoutes(): string
         foreach ($staticRoutes as $path => $routes) {
             $code .= sprintf("    %s => [\n", self::export($path));
             foreach ($routes as $route) {
-                $r = array_map([__CLASS__, 'export'], $route);
-                $code .= sprintf("        [%s, %s, %s, %s, %s, %s, %s],\n", $r[0], $r[1], $r[2], $r[3], $r[4], $r[5], $r[6]);
+                $code .= vsprintf("        [%s, %s, %s, %s, %s, %s, %s],\n", array_map([__CLASS__, 'export'], $route));
             }
             $code .= "    ],\n";
         }
@@ -152,8 +151,7 @@ private function generateCompiledRoutes(): string
         foreach ($dynamicRoutes as $path => $routes) {
             $code .= sprintf("    %s => [\n", self::export($path));
             foreach ($routes as $route) {
-                $r = array_map([__CLASS__, 'export'], $route);
-                $code .= sprintf("        [%s, %s, %s, %s, %s, %s, %s],\n", $r[0], $r[1], $r[2], $r[3], $r[4], $r[5], $r[6]);
+                $code .= vsprintf("        [%s, %s, %s, %s, %s, %s, %s],\n", array_map([__CLASS__, 'export'], $route));
             }
             $code .= "    ],\n";
         }