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D26208.diff
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diff --git a/bin/sleep/sleep.1 b/bin/sleep/sleep.1
--- a/bin/sleep/sleep.1
+++ b/bin/sleep/sleep.1
@@ -32,7 +32,7 @@
.\" @(#)sleep.1 8.3 (Berkeley) 4/18/94
.\" $FreeBSD$
.\"
-.Dd April 18, 1994
+.Dd December 31, 2020
.Dt SLEEP 1
.Os
.Sh NAME
@@ -65,8 +65,8 @@
command allows and honors a non-integer number of seconds to sleep
in any form acceptable by
.Xr strtod 3 .
-This is a non-portable extension, and its use will nearly guarantee that
-a shell script will not execute properly on another system.
+This is a non-portable extension, but is also implemented in GNU sh-utils
+since version 2.0a (released in 2002).
.Sh EXIT STATUS
.Ex -std
.Sh EXAMPLES
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D26208: sleep(1) fractional seconds not so risky
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