[PostGIS] #5779: create_upgrade.pl fails for 3.5.0-beta1

[PostGIS]

#5779: create_upgrade.pl fails for 3.5.0-beta1
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  Reporter:  Bas Couwenberg  |      Owner:  strk
      Type:  defect          |     Status:  new
  Priority:  medium          |  Milestone:  PostGIS 3.5.0
 Component:  build           |    Version:  master
Resolution:                  |   Keywords:
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Comment (by Bas Couwenberg):

 strk wrote on postgis-dev:
 > We've upgraded it, Regina updated the ticket with this information
 > and I've further pushed a temptative fix so if you can test that'd be
 > useful ( commit 4b786d9992479041f4bc0cf559cc10e3feca4e2c )

 That commit cannot be found on
 https://git.osgeo.org/gitea/postgis/postgis.git (yet).
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5779#comment:3>
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