[gtk/textbuf-serialize-fix-format-string: 1/2] GtkTextBufferSerialize: Add G_GNUC_PRINTF() to set_error()

[Felix Riemann <friemann src gnome org>]

commit 0dcbbc3344b2f1f6c21f30e81f3a123c19d87858
Author: Felix Riemann <friemann gnome org>
Date:   Sat Apr 27 14:34:07 2019 +0200

    GtkTextBufferSerialize: Add G_GNUC_PRINTF() to set_error()
    
    This allows the compiler to warn if format string and arguments do not match.

 gtk/gtktextbufferserialize.c | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/gtk/gtktextbufferserialize.c b/gtk/gtktextbufferserialize.c
index 27fe43ab59..b6cf9b34e8 100644
--- a/gtk/gtktextbufferserialize.c
+++ b/gtk/gtktextbufferserialize.c
@@ -703,6 +703,14 @@ typedef struct
   gboolean parsed_tags;
 } ParseInfo;
 
+static void
+set_error (GError              **err,
+           GMarkupParseContext  *context,
+           int                   error_domain,
+           int                   error_code,
+           const char           *format,
+           ...) G_GNUC_PRINTF(5, 6);
+
 static void
 set_error (GError              **err,
            GMarkupParseContext  *context,