[gtksourceview] c.lang: fix typo in __DATE__ macro

[Christian Hergert <chergert src gnome org>]

commit 56cd88fd6baf96583ee40254384dfd48bae8c0b2
Author: Christian Hergert <chergert redhat com>
Date:   Mon Nov 8 11:50:55 2021 -0800

    c.lang: fix typo in __DATE__ macro
    
    Fixes #230

 data/language-specs/c.lang | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/language-specs/c.lang b/data/language-specs/c.lang
index b94d4a5c..9b6e2d77 100644
--- a/data/language-specs/c.lang
+++ b/data/language-specs/c.lang
@@ -274,7 +274,7 @@
       <keyword>TRUE</keyword>
       <keyword>FALSE</keyword>
       <keyword>__LINE__</keyword>
-      <keyword>__DATA__</keyword>
+      <keyword>__DATE__</keyword>
       <keyword>__FILE__</keyword>
       <keyword>__func__</keyword>
       <keyword>__TIME__</keyword>