[SAC] [OSGeo] #1561: Fix rendering of utf8 characters in trac source browser

[OSGeo]

#1561: Fix rendering of utf8 characters in trac source browser
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 Reporter:  strk           |      Owner:  sac@…
     Type:  task           |     Status:  new
 Priority:  normal         |  Milestone:
Component:  Systems Admin  |   Keywords:  utf8, i18n
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 The UTF8 chars in this page are not shown correctly:
 https://trac.osgeo.org/postgis/browser/trunk/authors.git

 Compare to the rendering from the gitlab mirror:
 https://gitlab.com/postgis/postgis/blob/svn-trunk/authors.git

 The UTF8 encoding in the file is correct, see
 https://trac.osgeo.org/postgis/ticket/3333#comment:2

 I've checked HTTP headers and META html tag of the page and both also
 advertise an utf8 content, so I dunno where the encoding gets ruined.

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Ticket URL: <https://trac.osgeo.org/osgeo/ticket/1561>
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