Use Mt for emails.

man/zip_source_file.mdoc

diff --git a/man/zip_source_file.mdoc b/man/zip_source_file.mdoc
index 058347b..0f3ba20 100644
--- a/man/zip_source_file.mdoc
+++ b/man/zip_source_file.mdoc
@@ -96,6 +96,6 @@
 .Xr zip_source_zip 3
 .Sh AUTHORS
 .An -nosplit
-.An Dieter Baron Aq dillo@nih.at
+.An Dieter Baron Aq Mt dillo@nih.at
 and
-.An Thomas Klausner Aq tk@giga.or.at
+.An Thomas Klausner Aq Mt tk@giga.or.at