test: fix exception matching

Signed-off-by: Robin Appelman <robin@icewind.nl>

tests/ICAP/ICAPClientTest.php

@@ -14,7 +14,7 @@
 class ICAPClientTest extends TestCase {
 	public function testConnect_ShouldThrowRuntimeException() {
 		$this->expectException(\RuntimeException::class);
-		$this->expectExceptionMessage('Cannot connect to "tcp://nothinghere:8080": php_network_getaddresses: getaddrinfo for nothinghere failed: Name or service not known (code 0)');
+		$this->expectExceptionMessageMatches('Cannot connect to "tcp://nothinghere:8080": .*');
 		$icapClient = new ICAPClient("nothinghere", 8080, 2);
 		$icapClient->respmod("myservice",  [], [], []);
 	}