Added -0/--http1.0

docs/curl.1

@@ -644,6 +644,9 @@ Forces curl to use SSL version 3 when negotiating with a remote SSL server.
 .IP "-2/--sslv2"
 (HTTPS)
 Forces curl to use SSL version 2 when negotiating with a remote SSL server.
+.IP "-0/--http1.0"
+(HTTP) Forces curl to issue its requests using HTTP 1.0 instead of using its
+internally preferred: HTTP 1.1.
 .IP "-#/--progress-bar"
 Make curl display progress information as a progress bar instead of the
 default statistics.