Add missing CALLBACK modifier

[Dmitry Timoshkov]

Hello.

Changelog:
    Dmitry Timoshkov <dmitry at codeweavers.com>
    Add missing CALLBACK modifier.

diff -u cvs/hq/wine/tools/winebuild/spec16.c wine/tools/winebuild/spec16.c
--- cvs/hq/wine/tools/winebuild/spec16.c	Wed May 23 18:53:39 2001
+++ wine/tools/winebuild/spec16.c	Thu Sep 13 13:57:59 2001
@@ -434,7 +434,7 @@
         exit(1);
     }
 
-    fprintf( outfile, "%s %s_CallTo16_%s( FARPROC16 proc",
+    fprintf( outfile, "%s CALLBACK %s_CallTo16_%s( FARPROC16 proc",
              short_ret? "WORD" : "LONG", prefix, profile );
     args = profile + 5;
     for ( i = 0; args[i]; i++ )