[gtksourceview] cpphdr.lang: enable no-spell-check class by default

[Christian Hergert <chergert src gnome org>]

commit e570f1cb671d0ec05117f460bc7098b9128c9cfe
Author: Christian Hergert <chergert redhat com>
Date:   Sat Jul 30 19:23:12 2022 -0700

    cpphdr.lang: enable no-spell-check class by default

 data/language-specs/cpphdr.lang | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/language-specs/cpphdr.lang b/data/language-specs/cpphdr.lang
index 06bccd67..29855466 100644
--- a/data/language-specs/cpphdr.lang
+++ b/data/language-specs/cpphdr.lang
@@ -32,7 +32,7 @@
   </metadata>
 
   <definitions>
-    <context id="cpphdr">
+    <context id="cpphdr" class="no-spell-check">
       <include>
         <context ref="cpp:cpp-proper"/>
         <context ref="c:c"/>