client/ctclient: Fix doubled https in --log_name (#990)

* client/ctclient: Fix doubled https in --log_name

The URL format in v1 and v3 log lists was different - v1 doesn't include the https:// protocol, but v3 does.

* Add self to CONTRIBUTORS and AUTHORS

AUTHORS

@@ -8,6 +8,7 @@
 #
 # Please keep the list sorted.
 
+Alex Cohn <alex@alexcohn.com>
 Comodo CA Limited
 Ed Maste <emaste@freebsd.org>
 Fiaz Hossain <fiaz.hossain@salesforce.com>

CONTRIBUTORS

@@ -24,6 +24,7 @@
 
 Adam Eijdenberg <eijdenberg@google.com> <adam.eijdenberg@gmail.com>
 Al Cutter <al@google.com>
+Alex Cohn <alex@alexcohn.com>
 Ben Laurie <benl@google.com> <ben@links.org>
 Chris Kennelly <ckennelly@google.com> <ckennelly@ckennelly.com>
 David Drysdale <drysdale@google.com>

client/ctclient/cmd/root.go

@@ -137,7 +137,7 @@ func connect(ctx context.Context) *client.LogClient {
 			}
 			klog.Exitf("Multiple logs with name like %q found in loglist: %s", logName, strings.Join(logNames, ","))
 		}
-		uri = "https://" + logs[0].URL
+		uri = logs[0].URL
 		if opts.PublicKey == "" {
 			opts.PublicKeyDER = logs[0].Key
 		}