--- tramp-2.1.18-orig/texi/tramp.texi
+++ tramp-2.1.18/texi/tramp.texi
@@ -3339,7 +3339,7 @@
 
 @example
 #!/bin/sh
-emacsclient @trampfn{ssh, `whoami`, `hostname --fqdn`, $1}
+emacsclient @trampfn{ssh, $(whoami), $(hostname --fqdn), $1}
 @end example
 
 Then you must set the environment variable @code{EDITOR} pointing to