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+.\" Copyright 2011 Lars Wirzenius <liw@liw.fi>
+.\"
+.\" This program is free software: you can redistribute it and/or modify
+.\" it under the terms of the GNU General Public License as published by
+.\" the Free Software Foundation, either version 3 of the License, or
+.\" (at your option) any later version.
+.\"
+.\" This program is distributed in the hope that it will be useful,
+.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
+.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+.\" GNU General Public License for more details.
+.\"
+.\" You should have received a copy of the GNU General Public License
+.\" along with this program. If not, see <http://www.gnu.org/licenses/>.
+.\"
+.TH MKSPARSE 1
+.SH NAME
+mksparse \- add a hole to the end of a file
+.SH SYNOPSIS
+.B mksparse
+.RB [ \-\-size =\fISIZE\fR]
+.SH DESCRIPTION
+.B mksparse
+appends a "whole" to the end of an existing file.
+It appends one real NUL byte at the end of the whole.
+.SH OPTIONS
+.TP
+.BR \-\-size "=\fISIZE"
+Size of the whole to append.
+The actual size is one byte less.
+