grep: handle symlinked directory loops as usual

* src/main.c (grepfile): Treat EMLINK just like ELOOP, for
systems like FreeBSD 9.0 on which we would otherwise report
"Too many links" rather than ignoring that type of failure.
E.g., "mkdir d; cd d; ln -s . a; grep -r ^" would print
grep: a: Too many links and would exit with status 2.
Now, it prints nothing and exits with status 1, as before.
Reported by Nelson H. F. Beebe.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index be1e2e6b..82cae33c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1311,7 +1311,7 @@ grepfile (int dirdesc, char const *name, int follow, int command_line)
   int desc = openat_safer (dirdesc, name, O_RDONLY | (follow ? 0 : O_NOFOLLOW));
   if (desc < 0)
     {
-      if (follow || errno != ELOOP)
+      if (follow || (errno != ELOOP && errno != EMLINK))
         suppressible_error (filename, errno);
       return 1;
     }