[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/preproxy.d b/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/preproxy.d
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+Long: preproxy
+Arg: [protocol://]host[:port]
+Help: Use this proxy first
+Added: 7.52.0
+---
+Use the specified SOCKS proxy before connecting to an HTTP or HTTPS --proxy. In
+such a case curl first connects to the SOCKS proxy and then connects (through
+SOCKS) to the HTTP or HTTPS proxy. Hence pre proxy.
+
+The pre proxy string should be specified with a protocol:// prefix to specify
+alternative proxy protocols. Use socks4://, socks4a://, socks5:// or
+socks5h:// to request the specific SOCKS version to be used. No protocol
+specified will make curl default to SOCKS4.
+
+If the port number is not specified in the proxy string, it is assumed to be
+1080.
+
+User and password that might be provided in the proxy string are URL decoded
+by curl. This allows you to pass in special characters such as @ by using %40
+or pass in a colon with %3a.
+
+If this option is used several times, the last one will be used.