Add man page for zip_archive_set_tempdir, since I already wrote it.

man/zip_archive_set_tempdir.mdoc

diff --git a/man/zip_archive_set_tempdir.mdoc b/man/zip_archive_set_tempdir.mdoc
new file mode 100644
index 0000000..3f38078
--- /dev/null
+++ b/man/zip_archive_set_tempdir.mdoc
@@ -0,0 +1,67 @@
+.\" zip_archive_set_tempdir.mdoc -- set temporary directory for archive
+.\" Copyright (C) 2017 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>
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in
+.\"    the documentation and/or other materials provided with the
+.\"    distribution.
+.\" 3. The names of the authors may not be used to endorse or promote
+.\"    products derived from this software without specific prior
+.\"    written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
+.\" OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
+.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+.\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+.\" IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd December 18, 2016
+.Dt ZIP_ARCHIVE_SET_TEMPDIR 3
+.Os
+.Sh NAME
+.Nm zip_archive_set_tempdir
+.Nd set temporary directory for archive
+.Sh LIBRARY
+libzip (-lzip)
+.Sh SYNOPSIS
+.In zip.h
+.Ft int
+.Fn zip_archive_set_tempdir "zip_t *archive" "const char *path"
+.Sh DESCRIPTION
+The
+.Fn zip_archive_set_tempdir
+function sets the temporary directory for
+.Ar archive
+to
+.Ar path .
+The temporary directory is used for writing the intermediate zip archive during
+.Xr zip_close 3
+before the original zip archive is replaced with the completely written replacement.
+In general, it should be on the same file system as the original archive.
+.Sh RETURN VALUES
+Upon successful completion 0 is returned.
+Otherwise, \-1 is returned and the error code in
+.Ar archive
+is set to indicate the error.
+.Sh SEE ALSO
+.Xr libzip 3 ,
+.Xr zip_close 3
+.Sh AUTHORS
+.An -nosplit
+.An Dieter Baron Aq Mt dillo@nih.at
+and
+.An Thomas Klausner Aq Mt tk@giga.or.at