[Karl Wescott]

It looks like your lower hinge leaves may be too far apart.


First, check the obvious... Are mount screws tight and the mounting structure of the body and door sound? If not fix it as attempting to adjust the hinge might break something.


Adjusting the hinge by bending is the way its done.
If you need to close the hinge gap, with the doors closed clamp the leaves of the hinge together, then open the door.
You can open the gap with a block placed in between the leaves of the hinge and closing the door. If you use a block of wood use hardwood, pine will just crush. A knurled handle from a socket wrench works well (or a really crusty rusted socket). I used to have a tool which had two different sizes of knurled rounds which was marketed as a door adjustment tool.