compiler warning read_objtype_from_string()

I'm getting the following compiler warning (using nondefault
optimization options):

objectaddress.c: In function 'read_objtype_from_string':
objectaddress.c:2309:9: error: 'type' may be used uninitialized in this
function [-Werror=maybe-uninitialized]
return type;

The comment for the function says

* Return ObjectType for the given object type as given by
* getObjectTypeDescription; if no valid ObjectType code exists, but it's a
* possible output type from getObjectTypeDescription, return -1.

But the claim that it can return -1 does not seem supported by the code.

--
Peter Eisentraut http://www.2ndQuadrant.com/
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