xxd: do not try reading from closed stdin when non-existent file is given

Was:
	xxd: FILE: No such file or directory
	xxd: FILE: Bad file descriptor

function                                             old     new   delta
next                                                 276     278      +2

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/libbb/dump.c b/libbb/dump.c
index 8c2a370d0..9c16f1f94 100644
--- a/libbb/dump.c
+++ b/libbb/dump.c
@@ -357,6 +357,7 @@ static NOINLINE int next(priv_dumper_t *dumper)
                                 if (!freopen(fname, "r", stdin)) {
                                         bb_simple_perror_msg(fname);
                                         dumper->exitval = 1;
+                                        dumper->next__done = 1;
                                         continue;
                                 }
                         }