[PostGIS] #5986: Remove compilation warning on uninitialized variable

[PostGIS]

#5986: Remove compilation warning on uninitialized variable
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  Reporter:  sepal   |      Owner:  strk
      Type:  patch   |     Status:  closed
  Priority:  medium  |  Milestone:  PostGIS 3.6.1
 Component:  build   |    Version:  3.5.x
Resolution:  fixed   |   Keywords:
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Changes (by pramsey):

 * resolution:   => fixed
 * status:  new => closed

Comment:

 Cherry picked.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5986#comment:2>
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