listxattr.2: Fix RETURN VALUE description
On success, 0 may be returned, so change wording from
"positive number" to "nonnegative number".
Reported-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
diff --git a/man2/listxattr.2 b/man2/listxattr.2
index 5972d74..98507e0 100644
--- a/man2/listxattr.2
+++ b/man2/listxattr.2
@@ -118,7 +118,7 @@
.RE
.fam T
.SH RETURN VALUE
-On success, a positive number is returned indicating the size of the
+On success, a nonnegative number is returned indicating the size of the
extended attribute name list.
On failure, \-1 is returned and
.I errno
