[gtksourceview] Revert "html.lang: Require end tags for <style> and <script>"

[Christian Hergert <chergert src gnome org>]

commit 8d676465717d71c0a54626246d5ac3bfab0697dc
Author: Jeffery To <jeffery to gmail com>
Date:   Mon Aug 5 04:26:18 2019 +0800

    Revert "html.lang: Require end tags for <style> and <script>"
    
    This reverts commit 600229589eabdcab70cd86016a6d387d9e7f67c2.
    
    Inline SVG can include style and script elements, and like other XML
    elements they can be self-closed.

 data/language-specs/html.lang | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/data/language-specs/html.lang b/data/language-specs/html.lang
index 94fdf287..30145c2a 100644
--- a/data/language-specs/html.lang
+++ b/data/language-specs/html.lang
@@ -297,6 +297,10 @@
         <context sub-pattern="0" where="start" style-ref="tag"/>
         <context ref="generic-tag"/>
 
+        <context end-parent="true" style-ref="tag">
+          <match>/&gt;</match>
+        </context>
+
         <context id="style-code" end-parent="true">
           <start>&gt;</start>
           <end>&lt;/style\s*&gt;</end>
@@ -316,6 +320,10 @@
         <context sub-pattern="0" where="start" style-ref="tag"/>
         <context ref="generic-tag"/>
 
+        <context end-parent="true" style-ref="tag">
+          <match>/&gt;</match>
+        </context>
+
         <context id="js-code" end-parent="true">
           <start>&gt;</start>
           <end>&lt;/script\s*&gt;</end>