Make test more resilient

Depending on the libcurl version and perhaps configuration, it may show
additional info (due to `CURLOPT_VERBOSE` being activated), which we
have to ignore, to avoid spurious test failures.

Author: cmb69

ext/curl/tests/bug48203.phpt

@@ -27,5 +27,5 @@ echo "Ok\n";
 Warning: curl_exec(): CURLOPT_STDERR resource has gone away, resetting to stderr in %s on line %d
 %A
 Hello World!
-Hello World!* Closing connection 0
+Hello World!%A
 Ok