Merge pull request #1913 from restic/restic-password-stdin-message

Print message for password being read from stdin

cmd/restic/global.go

@@ -293,6 +293,7 @@ func ReadPassword(opts GlobalOptions, prompt string) (string, error) {
 		password, err = readPasswordTerminal(os.Stdin, os.Stderr, prompt)
 	} else {
 		password, err = readPassword(os.Stdin)
+		Verbosef("read password from stdin\n")
 	}
 
 	if err != nil {