Normalize "ssh.github.com" hostname to just "github.com"

github/hosts.go

 package github
 
 import (
-	"fmt"
 	"os"
 	"strings"
 
@@ -27,7 +26,7 @@ func (h GitHubHosts) Include(host string) bool {
 func knownGitHubHosts() (hosts GitHubHosts) {
 	defaultHost := DefaultGitHubHost()
 	hosts = append(hosts, defaultHost)
-	hosts = append(hosts, fmt.Sprintf("ssh.%s", defaultHost))
+	hosts = append(hosts, "ssh." + GitHubHost)
 
 	ghHosts, _ := git.Config("hub.host")
 	for _, ghHost := range strings.Split(ghHosts, "\n") {

github/project.go

@@ -143,6 +143,9 @@ func newProject(owner, name, host, protocol string) *Project {
 	if host == "" {
 		host = DefaultGitHubHost()
 	}
+	if host == "ssh.github.com" {
+		host = "github.com"
+	}
 
 	if protocol != "http" && protocol != "https" {
 		protocol = ""