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-rw-r--r--sys-utils/flock.14
1 files changed, 3 insertions, 1 deletions
diff --git a/sys-utils/flock.1 b/sys-utils/flock.1
index 276d72633..f69040190 100644
--- a/sys-utils/flock.1
+++ b/sys-utils/flock.1
@@ -103,7 +103,9 @@ Fail if the lock cannot be acquired within
Decimal fractional values are allowed.
See the
.B \-E
-option for the exit code used.
+option for the exit code used. The zero number of
+.IR seconds
+is interpreted as \fB\-\-nonblock\fR.
.TP
.BR \-V , " \-\-version"
Display version information and exit.