Output the ® symbol.
| Type & position: | placeholder, preamble & main part | 
| Syntax: | (!reg) | 
| Description: | This placeholder will be replaced by the registermarke symbol
if the destination format supports it. If it doesn't UDO will replace
this placeholder by registered.  | 
| Example: | (!reg) becomes ®. | 
| Exists since: | Version 6.5.8 | 
| See also: | (!tm), Defined macros |