zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/dns-interface.d b/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/dns-interface.d
new file mode 100644
index 0000000..45e5af2
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/dns-interface.d
@@ -0,0 +1,11 @@
+Long: dns-interface
+Arg: <interface>
+Help: Interface to use for DNS requests
+Protocols: DNS
+See-also: dns-ipv4-addr dns-ipv6-addr
+Added: 7.33.0
+Requires: c-ares
+---
+Tell curl to send outgoing DNS requests through <interface>. This option is a
+counterpart to --interface (which does not affect DNS). The supplied string
+must be an interface name (not an address).