Compiler switch: `-gdwarf-<version>` or `-gdwarf=<version>` ?

[Luhrel]

Hello,

Transcribing it here because not everyone may see it.
 From the PR https://github.com/dlang/dmd/pull/11509:

wilzbach:
>> Add `-gdwarf-<version>` compiler switch
>Shouldn't the switch be -gdwarf=5 to be consistent with DMD's 
>other flags? Then, it's also >possible for the user to list all 
>available options.

me:
> Maybe, but Clang and GCC have the -gdwarf-<version> switch, so 
> I added the same for consistency between different compilers. 
> What do you think ?

wilzbach:
> I think sticking to the DMD style makes more sense here, 
> because I am not sure a lot of people would like to have at 
> least three more CLI flags. IIRC there has been a precedent 
> with make flags. What do other people think?

So, what's your point of view, guys ?