[gtksourceview] c.lang: Highlight double_t and float_t

[Christian Hergert <chergert src gnome org>]

commit f7bf7e21a93d2447bf3f64b6610e7205b4feff4a
Author: Matthias Schneider <cx879 posteo de>
Date:   Wed Apr 24 01:08:46 2019 +0200

    c.lang: Highlight double_t and float_t

 data/language-specs/c.lang | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/data/language-specs/c.lang b/data/language-specs/c.lang
index 12f6010e..523d7e92 100644
--- a/data/language-specs/c.lang
+++ b/data/language-specs/c.lang
@@ -227,8 +227,8 @@
       <keyword>bool</keyword>
       <keyword>char</keyword>
       <keyword>char(16|32)_t</keyword>
-      <keyword>double</keyword>
-      <keyword>float</keyword>
+      <keyword>double(_t)?</keyword>
+      <keyword>float(_t)?</keyword>
       <keyword>int</keyword>
       <keyword>(u)?int(_least|_fast)?(8|16|32|64)_t</keyword>
       <keyword>(u)?intmax_t</keyword>