[devdocsgjs/main: 1665/1867] Update Gnuplot documentation (5.4.0)

[Andy Holmes <andyholmes src gnome org>]

commit f489154ed79cc61a816ca1736a68c0e70403e168
Author: Enoc <brianhernandez222 hotmail com>
Date:   Tue May 25 00:12:40 2021 -0600

    Update Gnuplot documentation (5.4.0)

 lib/docs/filters/gnuplot/clean_html.rb | 4 ++++
 lib/docs/scrapers/gnuplot.rb           | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)
---
diff --git a/lib/docs/filters/gnuplot/clean_html.rb b/lib/docs/filters/gnuplot/clean_html.rb
index 92b20597..1ffd5de3 100644
--- a/lib/docs/filters/gnuplot/clean_html.rb
+++ b/lib/docs/filters/gnuplot/clean_html.rb
@@ -1,3 +1,4 @@
+# coding: utf-8
 module Docs
   class Gnuplot
     class CleanHtmlFilter < Filter
@@ -14,6 +15,9 @@ module Docs
           title = css('.HUGE')[0]
           title.name = 'h1'
 
+          # weird .svg links
+          css('#tex2html_wrap21553').remove
+
           subtitle = css('.XLARGE')[0]
           title.content = title.content + ' − ' + subtitle.content
 
diff --git a/lib/docs/scrapers/gnuplot.rb b/lib/docs/scrapers/gnuplot.rb
index 3a2838cc..841b7532 100644
--- a/lib/docs/scrapers/gnuplot.rb
+++ b/lib/docs/scrapers/gnuplot.rb
@@ -1,7 +1,7 @@
 module Docs
   class Gnuplot < FileScraper
     self.type = 'gnuplot'
-    self.release = '5.2.8'
+    self.release = '5.4.0'
     self.links = {
       home: 'http://www.gnuplot.info/',
       code: 'https://sourceforge.net/projects/gnuplot/'