[gimp] Windows backtrace: VEH must use stdcall

[Jehan <jehanp src gnome org>]

commit cd54a8fee99257f300690f56c228634f83861bed
Author: Руслан Ижбулатов <lrn1986 gmail com>
Date:   Wed Nov 20 10:59:54 2019 +0000

    Windows backtrace: VEH must use stdcall
    
    Fixes issue #2794

 app/core/gimpbacktrace-windows.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/app/core/gimpbacktrace-windows.c b/app/core/gimpbacktrace-windows.c
index 9b9e0ee67c..5968f70012 100644
--- a/app/core/gimpbacktrace-windows.c
+++ b/app/core/gimpbacktrace-windows.c
@@ -90,7 +90,7 @@ static void          gimp_backtrace_set_thread_name   (DWORD                tid,
 
 static gboolean      gimp_backtrace_enumerate_threads (void);
 
-static LONG          gimp_backtrace_exception_handler (PEXCEPTION_POINTERS  info);
+static LONG WINAPI   gimp_backtrace_exception_handler (PEXCEPTION_POINTERS  info);
 
 
 /*  static variables  */
@@ -222,7 +222,7 @@ gimp_backtrace_enumerate_threads (void)
   return n_threads > 0;
 }
 
-static LONG
+static LONG WINAPI
 gimp_backtrace_exception_handler (PEXCEPTION_POINTERS info)
 {
   #define EXCEPTION_SET_THREAD_NAME ((DWORD) 0x406D1388)