Allow "deprecated" to accept more than string literals while parsing

[Steven Schveighoffer via Digitalmars-d]

On 5/31/15 11:33 PM, Brian Schott wrote:
> Here's something that I ran into while writing dfix`s implicit string
> concatenation cleanup code:
>
> ```
> // accepted
> deprecated("This function is dumb and you shouldn't use it)
> void deleteT3hH4rdDisk();
>
> // accepted
> deprecated("This function is dumb and" " you shouldn't use it)
> void deleteT3hH4rdDisk();
>
> // parse error
> deprecated("This function is dumb and" ~ " you shouldn't use it)
> void deleteT3hH4rdDisk();
> ```
>

Am I missing something, or is the trailing quote not required? (missing 
in all 3 examples).

-Steve