Fix port of file-acl errno checking to non-GNU

I had misinterpreted the private email from Ashish Shukla.
* src/fileio.c (Ffile_acl): Fix typo in previous change
by negating the call to acl_errno_valid.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/fileio.c b/src/fileio.c
index 781a71bcf35..f1860e8a930 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -3248,7 +3248,7 @@ Return nil if file does not exist.  */)
   acl_t acl = acl_get_file (SSDATA (ENCODE_FILE (absname)), ACL_TYPE_EXTENDED);
   if (acl == NULL)
     {
-      if (errno == ENOENT || errno == ENOTDIR || acl_errno_valid (errno))
+      if (errno == ENOENT || errno == ENOTDIR || !acl_errno_valid (errno))
         return Qnil;
       report_file_error ("Getting ACLs", absname);
     }