[postgis-tickets] [PostGIS] #5454: po files keep growing on `update-po`

[PostGIS]

#5454: po files keep growing on `update-po`
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  Reporter:  strk    |      Owner:  robe
      Type:  defect  |     Status:  new
  Priority:  medium  |  Milestone:  PostGIS 3.4.0
 Component:  l18n    |    Version:
Resolution:          |   Keywords:
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Comment (by strk):

 Trimming can be done with msgattrib:
 {{{
 msgattrib --no-obsolete -o po/ja/reference_processing.xml.po
 po/ja/reference_processing.xml.po
 }}}

 In addition to drop the obsoleted translations it also tend to reformat
 lines (line wrapping)
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5454#comment:1>
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