Properly trim the PATH_INFO.

www/swreg/callhome.php

@@ -51,7 +51,7 @@ if ($logger === false) {
 $mask = Log::UPTO(LOG_LEVEL);
 $logger->setMask($mask);
 
-list($pid, $sn) = explode('/', $_SERVER['PATH_INFO']);
+list($pid, $sn) = explode('/', trim($_SERVER['PATH_INFO'], '/'));
 
 header('Content-type: text/plain');