Mention zip_register_progress_callback in zip_close.

man/zip_close.mdoc

diff --git a/man/zip_close.mdoc b/man/zip_close.mdoc
index 3672bed..96bcbae 100644
--- a/man/zip_close.mdoc
+++ b/man/zip_close.mdoc
@@ -29,7 +29,7 @@
 .\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 .\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd February 13, 2012
+.Dd December 18, 2016
 .Dt ZIP_CLOSE 3
 .Os
 .Sh NAME
@@ -106,6 +106,7 @@
 .Xr zip_error_get 3 ,
 .Xr zip_fdopen 3 ,
 .Xr zip_open 3 ,
+.Xr zip_register_progress_callback 3 ,
 .Xr zip_strerror 3
 .Sh AUTHORS
 .An -nosplit