Switch the default "init" format back to JSON. Fixes #724.
Switch the default "init" format back to JSON. Fixes #724.

This commit also adds an indicator of the default format on the help screen.

Flamaros/dub,jelmansouri/dub,jeanbaptistelab/dub,gedaiu/dub,rjframe/dub,D-Programming-Language/dub,Geod24/dub,grogancolin/dub,xentec/dub,p0nce/dub