Add zip_source(3) and use instead of links to all implementations.
These lists are not updated often, it seems.
diff --git a/man/zip_source_function.mdoc b/man/zip_source_function.mdoc
index 81403aa..ae00975 100644
--- a/man/zip_source_function.mdoc
+++ b/man/zip_source_function.mdoc
@@ -1,5 +1,5 @@
.\" zip_source_function.mdoc -- create data source from function
-.\" Copyright (C) 2004-2013 Dieter Baron and Thomas Klausner
+.\" Copyright (C) 2004-2014 Dieter Baron and Thomas Klausner
.\"
.\" This file is part of libzip, a library to manipulate ZIP archives.
.\" The authors can be contacted at <libzip@nih.at>
@@ -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 September 22, 2013
+.Dd August 2, 2014
.Dt ZIP_SOURCE_FUNCTION 3
.Os
.Sh NAME
@@ -154,11 +154,7 @@
.Xr libzip 3 ,
.Xr zip_add 3 ,
.Xr zip_replace 3 ,
-.Xr zip_source_buffer 3 ,
-.Xr zip_source_file 3 ,
-.Xr zip_source_filep 3 ,
-.Xr zip_source_free 3 ,
-.Xr zip_source_zip 3 ,
+.Xr zip_source 3 ,
.Xr zip_stat_init 3
.Sh AUTHORS
.An -nosplit
