mdoc should not contain empty lines.
diff --git a/libarchive/archive_write_format.3 b/libarchive/archive_write_format.3
index d4ba6ab..aaafb0a 100644
--- a/libarchive/archive_write_format.3
+++ b/libarchive/archive_write_format.3
@@ -108,7 +108,6 @@
 These functions set the format that will be used for the archive.
 .Pp
 The library can write a variety of common archive formats.
-
 .Bl -tag -width indent
 .It Fn archive_write_set_format
 Sets the format based on the format code (see