[gnome-text-editor] recoloring: reduce size of doubles

[Christian Hergert <chergert src gnome org>]

commit 693b7bb49ee20ce2a0ed106d25061cc0030a547b
Author: Christian Hergert <chergert redhat com>
Date:   Tue Dec 21 23:13:14 2021 -0800

    recoloring: reduce size of doubles
    
    We don't need giant precision here.

 src/editor-recoloring.c | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/editor-recoloring.c b/src/editor-recoloring.c
index 836683e..1e63c49 100644
--- a/src/editor-recoloring.c
+++ b/src/editor-recoloring.c
@@ -136,6 +136,9 @@ define_color_mixed (GString       *str,
 
   g_ascii_dtostr (levelstr, sizeof levelstr, level);
 
+  /* truncate */
+  levelstr[6] = 0;
+
   g_string_append_printf (str, "@define-color %s mix(%s,%s,%s);\n", name, a_str, b_str, levelstr);
 }