cksum(1), print MISSING rather than FAILED for nonexistent files

[Stuart Henderson]

would anyone else find this (or a variation thereof) useful?

example use: if you download a partial snapshot and would like to
check files, this makes it easy to identify whether a file actually
fails the checksum, or whether you just don't have it.

Index: md5.c
===================================================================
RCS file: /cvs/src/bin/md5/md5.c,v
retrieving revision 1.52
diff -u -p -r1.52 md5.c
--- md5.c       27 Oct 2010 15:24:10 -0000      1.52
+++ md5.c       8 Apr 2011 09:17:29 -0000
@@ -655,7 +655,7 @@ digest_filelist(const char *file, struct
 
                if ((fp = fopen(filename, "r")) == NULL) {
                        warn("cannot open %s", filename);
-                       (void)printf("(%s) %s: FAILED\n", algorithm, filename);
+                       (void)printf("(%s) %s: MISSING\n", algorithm, filename);
                        error = 1;
                        continue;
                }