zte's code,first commit

Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/referer.d b/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/referer.d
new file mode 100644
index 0000000..cd84e9d
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/referer.d
@@ -0,0 +1,14 @@
+Long: referer
+Short: e
+Arg: <URL>
+Protocols: HTTP
+Help: Referrer URL
+See-also: user-agent header
+---
+Sends the "Referrer Page" information to the HTTP server. This can also be set
+with the --header flag of course.  When used with --location you can append
+";auto" to the --referer URL to make curl automatically set the previous URL
+when it follows a Location: header. The \&";auto" string can be used alone,
+even if you don't set an initial --referer.
+
+If this option is used several times, the last one will be used.