This patch fixes the "mdump" and "medit" shell commands:

- "mdump" got the length argument wrong and would only produce useful
  output if it was omitted.

- "medit" overran the argument list, choking on the NULL pointer
  following the last argument.

Note that "medit" still only does byte-sized accesses, which limits
its usefulness on most systems.

- Werner

Index: rtems/cpukit/libmisc/shell/main_mdump.c
===================================================================
--- rtems.orig/cpukit/libmisc/shell/main_mdump.c	2012-01-25 21:48:05.000000000 -0300
+++ rtems/cpukit/libmisc/shell/main_mdump.c	2012-01-25 21:48:27.000000000 -0300
@@ -47,8 +47,8 @@
   }
 
   if (argc > 2) {
-    if ( rtems_string_to_int(argv[1], &max, NULL, 0) ) {
-      printf( "Length argument (%s) is not a number\n", argv[1] );
+    if ( rtems_string_to_int(argv[2], &max, NULL, 0) ) {
+      printf( "Length argument (%s) is not a number\n", argv[2] );
       return -1;
     }
     if (max <= 0) {
Index: rtems/cpukit/libmisc/shell/main_medit.c
===================================================================
--- rtems.orig/cpukit/libmisc/shell/main_medit.c	2012-01-25 21:48:30.000000000 -0300
+++ rtems/cpukit/libmisc/shell/main_medit.c	2012-01-25 21:50:30.000000000 -0300
@@ -55,7 +55,7 @@
    * Now edit the memory
    */
   n = 0;
-  for (i=2 ; i<=argc ; i++) {
+  for (i=2 ; i<argc ; i++) {
     unsigned char tmpc;
 
     if ( rtems_string_to_unsigned_char(argv[i], &tmpc, NULL, 0) ) {