Small refactoring for better readability

Author: Stanislav Idolov

app/bootstrap.php

@@ -54,14 +54,12 @@
     && isset($_SERVER['HTTP_ACCEPT'])
     && strpos($_SERVER['HTTP_ACCEPT'], 'text/html') !== false
 ) {
-    $profilerString = isset($_SERVER['MAGE_PROFILER']) && strlen($_SERVER['MAGE_PROFILER'])
+    $profilerConfig = isset($_SERVER['MAGE_PROFILER']) && strlen($_SERVER['MAGE_PROFILER'])
         ? $_SERVER['MAGE_PROFILER']
         : trim(file_get_contents(BP . '/var/profiler.flag'));
 
-    if ($profilerString && $profilerArray = json_decode($profilerString, true)) {
-        $profilerConfig = $profilerArray;
-    } else {
-        $profilerConfig = $profilerString;
+    if ($profilerConfig) {
+        $profilerConfig = json_decode($profilerConfig, true) ?: $profilerConfig;
     }
 
     Magento\Framework\Profiler::applyConfig(