THRIFT-3596 Better conformance to PEP8

This closes #832
diff --git a/tutorial/php/runserver.py b/tutorial/php/runserver.py
index ae29fed..077daa1 100755
--- a/tutorial/php/runserver.py
+++ b/tutorial/php/runserver.py
@@ -26,7 +26,8 @@
 # chdir(2) into the tutorial directory.
 os.chdir(os.path.dirname(os.path.dirname(os.path.realpath(__file__))))
 
+
 class Handler(CGIHTTPServer.CGIHTTPRequestHandler):
-  cgi_directories  = ['/php']
+    cgi_directories = ['/php']
 
 BaseHTTPServer.HTTPServer(('', 8080), Handler).serve_forever()