Fix SSH failure due to .ssh/config owner (#1005)

* use -F option, success configtest and scan

* add sshConfigPath in config.toml

* Use sshConfigPath in config.toml when using ssh -F

* change -ssh-config to deprecated

* fix typo

* add sshConfigPath in tomltemplate

commands/configtest.go

@@ -36,7 +36,7 @@ func (*ConfigtestCmd) Usage() string {
 			[-log-dir=/path/to/log]
 			[-ask-key-password]
 			[-timeout=300]
-			[-ssh-external]
+			[-ssh-config]
 			[-containers-only]
 			[-http-proxy=http://192.168.0.1:8080]
 			[-debug]
@@ -69,7 +69,7 @@ func (p *ConfigtestCmd) SetFlags(f *flag.FlagSet) {
 		"Use Native Go implementation of SSH. Default: Use the external command")
 
 	f.BoolVar(&c.Conf.SSHConfig, "ssh-config", false,
-		"Use SSH options specified in ssh_config preferentially")
+		"[Deprecated] Use SSH options specified in ssh_config preferentially")
 
 	f.BoolVar(&c.Conf.ContainersOnly, "containers-only", false,
 		"Test containers only. Default: Test both of hosts and containers")
@@ -108,6 +108,16 @@ func (p *ConfigtestCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interfa
 		return subcommands.ExitUsageError
 	}
 
+	if c.Conf.SSHConfig {
+		msg := []string{
+			"-ssh-config is deprecated",
+			"If you update Vuls and get this error, there may be incompatible changes in config.toml",
+			"Please check config.toml template : https://vuls.io/docs/en/usage-settings.html",
+		}
+		util.Log.Errorf("%s", strings.Join(msg, "\n"))
+		return subcommands.ExitUsageError
+	}
+
 	var servernames []string
 	if 0 < len(f.Args()) {
 		servernames = f.Args()