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-rw-r--r--docs/man1/bmaptool.14
1 files changed, 3 insertions, 1 deletions
diff --git a/docs/man1/bmaptool.1 b/docs/man1/bmaptool.1
index 6d4ddc2..e6bbb2f 100644
--- a/docs/man1/bmaptool.1
+++ b/docs/man1/bmaptool.1
@@ -211,7 +211,9 @@ IMAGE matches the checksums.
.PP
\-\-psplash\-pipe PATH
.RS 2
-Write progress to a psplash pipe.
+Write periodic machine-readable progress reports to a fifo in the format
+used by \fBpsplash\fR. Each progress report consists of "PROGRESS" followed
+by a space, an integer percentage and a newline.
.RE
.RE