Write the PHP-FPM timeout message on a single line

src/FpmRuntime/FpmHandler.php

@@ -148,7 +148,9 @@ public function handleRequest(HttpRequestEvent $event, Context $context): HttpRe
             $response = $this->client->readResponse($socketId, $timeoutDelayInMs);
         } catch (TimedoutException) {
             $invocationId = $context->getAwsRequestId();
-            echo "$invocationId The PHP script timed out. Bref will now restart PHP-FPM to start from a clean slate and flush the PHP logs.\nTimeouts can happen for example when trying to connect to a remote API or database, if this happens continuously check for those.\nIf you are using a RDS database, read this: https://bref.sh/docs/environment/database.html#accessing-the-internet\n";
+            echo "$invocationId The PHP script timed out. Bref will now restart PHP-FPM to start from a clean slate and flush the PHP logs. "
+                . 'Timeouts can happen for example when trying to connect to a remote API or database, if this happens continuously check for those. '
+                . "If you are using a RDS database, read this: https://bref.sh/docs/environment/database#vpc-databases-private-network\n";
 
             /**
              * Restart FPM so that the blocked script is 100% terminated and that its logs are flushed to stderr.

tests/FpmRuntime/FpmHandlerTest.php

@@ -1221,6 +1221,9 @@ public function test FPM timeouts are recovered from()
             ], $this->fakeContext);
             $this->fail('No exception was thrown');
         } catch (Timeout $e) {
+            // A single line starting with the request ID: Lambda turns each line into a separate log event
+            self::assertMatchesRegularExpression('/^abc The PHP script timed out\. [^\n]+\n$/', ob_get_contents());
+
             // PHP-FPM should work after that
             $statusCode = $this->fpm->handle([
                 'version' => '1.0',