nghttpx: Fix typo

src/shrpx.h

@@ -36,6 +36,6 @@
 #define DIE()                                   \
   assert(0);
 
-#define SHRPX_READ_WARTER_MARK (64*1024)
+#define SHRPX_READ_WATERMARK (64*1024)
 
 #endif // SHRPX_H

src/shrpx_client_handler.cc

@@ -59,7 +59,7 @@ namespace {
 void upstream_writecb(bufferevent *bev, void *arg)
 {
   auto handler = static_cast<ClientHandler*>(arg);
-  // We actually depend on write low-warter mark == 0.
+  // We actually depend on write low-water mark == 0.
   if(handler->get_outbuf_length() > 0) {
     // Possibly because of deferred callback, we may get this callback
     // when the output buffer is not empty.
@@ -279,7 +279,7 @@ ClientHandler::ClientHandler(bufferevent *bev,
   }
 
   bufferevent_enable(bev_, EV_READ | EV_WRITE);
-  bufferevent_setwatermark(bev_, EV_READ, 0, SHRPX_READ_WARTER_MARK);
+  bufferevent_setwatermark(bev_, EV_READ, 0, SHRPX_READ_WATERMARK);
   set_upstream_timeouts(&get_config()->upstream_read_timeout,
                         &get_config()->upstream_write_timeout);
   if(ssl_) {

src/shrpx_http2_session.cc

@@ -481,7 +481,7 @@ int Http2Session::initiate_connection()
       return SHRPX_ERR_NETWORK;
     }
 
-    bufferevent_setwatermark(bev_, EV_READ, 0, SHRPX_READ_WARTER_MARK);
+    bufferevent_setwatermark(bev_, EV_READ, 0, SHRPX_READ_WATERMARK);
     bufferevent_enable(bev_, EV_READ);
     bufferevent_setcb(bev_, readcb, writecb, eventcb, this);
     // Set timeout for HTTP2 session

src/shrpx_http_downstream_connection.cc

@@ -105,7 +105,7 @@ int HttpDownstreamConnection::attach_downstream(Downstream *downstream)
   http_parser_init(&response_htp_, HTTP_RESPONSE);
   response_htp_.data = downstream_;
 
-  bufferevent_setwatermark(bev_, EV_READ, 0, SHRPX_READ_WARTER_MARK);
+  bufferevent_setwatermark(bev_, EV_READ, 0, SHRPX_READ_WATERMARK);
   bufferevent_enable(bev_, EV_READ);
   bufferevent_setcb(bev_,
                     upstream->get_downstream_readcb(),