Set freed variables to 0 in sane_exit. Fixed coding style. New version:

1.0-121.
Henning Meier-Geinitz <henning@meier-geinitz.de>

backend/mustek.h

@@ -1,7 +1,7 @@
 /* sane - Scanner Access Now Easy.
    Copyright (C) 1996, 1997 David Mosberger-Tang, 1998 Andreas Bolsch for
    extension to ScanExpress models version 0.5,
-   2000, 2001 Henning Meier-Geinitz.
+   2000 - 2002 Henning Meier-Geinitz.
    This file is part of the SANE package.
    
    This program is free software; you can redistribute it and/or
@@ -295,7 +295,8 @@ typedef struct Mustek_Scanner
     /* these are used for SE, MFS and N line-distance correction: */
     SANE_Byte *buf[3];
     /* these are used for N line-distance correction only: */
-	SANE_Int ld_line;/* line # currently processed in ld-correction */
+    SANE_Int ld_line;		/* line # currently processed in 
+				   ld-correction */
     SANE_Int lmod3;		/* line # modulo 3 */
   }
   ld;