better info msg

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

README.md

@@ -100,6 +100,7 @@ You can also grab a binary, built for _linux x86_64_, from the releases page, or
 ```sh
 $ export RELEASE=0.0.1
 $ wget https://github.com/runcom/skopeo/releases/download/v$RELEASE/skopeo
+$ chmod +x skopeo
 $ sudo mv skopeo /usr/local/bin/skopeo
 ```
 TODO

inspect.go

@@ -217,7 +217,7 @@ func getAuthConfig(c *cli.Context, index *registryTypes.IndexInfo) (types.AuthCo
 		cfg      = c.GlobalString("docker-cfg")
 	)
 	if _, err := os.Stat(cfg); err != nil {
-		logrus.Infof("Docker cli config file not found: %v, falling back to --username and --password", err)
+		logrus.Infof("Docker cli config file %q not found: %v, falling back to --username and --password if needed", cfg, err)
 		return types.AuthConfig{
 			Username: username,
 			Password: password,