Update to libjpeg_turbo 1.4.90

rdgif.c

 /*
  * rdgif.c
  *
  * Copyright (C) 1991-1997, Thomas G. Lane.
  * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
+ * For conditions of distribution and use, see the accompanying README.ijg
+ * file.
  *
  * This file contains routines to read input images in GIF format.
  *
  *****************************************************************************
  * NOTE: to avoid entanglements with Unisys' patent on LZW compression,      *
  * the ability to read GIF files has been removed from the IJG distribution. *
  * Sorry about that.                                                         *
  *****************************************************************************
  *
  * We are required to state that
  *    "The Graphics Interchange Format(c) is the Copyright property of
  *    CompuServe Incorporated. GIF(sm) is a Service Mark property of
  *    CompuServe Incorporated."
  */
 
-#include "cdjpeg.h"             /* Common decls for cjpeg/djpeg applications */
+#include "cdjpeg.h"             /* Common decls for cjpeg/djpeg applications */
 
 #ifdef GIF_SUPPORTED
 
 /*
  * The module selection routine for GIF format input.
  */
 
 GLOBAL(cjpeg_source_ptr)
 jinit_read_gif (j_compress_ptr cinfo)
 {
   fprintf(stderr, "GIF input is unsupported for legal reasons.  Sorry.\n");
   exit(EXIT_FAILURE);
-  return NULL;                  /* keep compiler happy */
+  return NULL;                  /* keep compiler happy */
 }
 
 #endif /* GIF_SUPPORTED */