zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/trace.d b/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/trace.d
new file mode 100644
index 0000000..334ea5a
--- /dev/null
+++ b/ap/lib/libcurl/curl-7.54.1/docs/cmdline-opts/trace.d
@@ -0,0 +1,11 @@
+Long: trace
+Arg: <file>
+Help: Write a debug trace to FILE
+Mutexed: verbose trace-ascii
+---
+Enables a full trace dump of all incoming and outgoing data, including
+descriptive information, to the given output file. Use "-" as filename to have
+the output sent to stdout. Use "%" as filename to have the output sent to
+stderr.
+
+If this option is used several times, the last one will be used.