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diff --git a/lib/libc/gen/ulimit.3 b/lib/libc/gen/ulimit.3
--- a/lib/libc/gen/ulimit.3
+++ b/lib/libc/gen/ulimit.3
@@ -21,7 +21,7 @@
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
-.Dd January 4, 2003
+.Dd October 8, 2026
.Dt ULIMIT 3
.Os
.Sh NAME
@@ -32,30 +32,28 @@
.Sh SYNOPSIS
.In ulimit.h
.Ft long
-.Fn ulimit "int cmd" "..."
+.Fo ulimit
+.Fa "int cmd"
+.Fa "..."
+.Fc
.Sh DESCRIPTION
The
.Fn ulimit
function will get and set process limits.
-Currently this is limited to the maximum file size.
+Currently, this is limited to the maximum file size.
The
.Fa cmd
argument is one of the following:
.Bl -tag -width ".Dv UL_GETFSIZE"
.It Dv UL_GETFSIZE
-will return the maximum file size in units of 512 blocks of
-the current process.
+will return the maximum file size of the current process,
+in units of 512-byte blocks.
.It Dv UL_SETFSIZE
will attempt to set the maximum file size of the current
-process and its children with the second argument expressed as a long.
+process and its children, using the second argument (expressed as a long).
.El
.Sh RETURN VALUES
-Upon successful completion,
-.Fn ulimit
-returns the value requested;
-otherwise the value \-1 is returned and the global variable
-.Va errno
-is set to indicate the error.
+.Rv -std
.Sh ERRORS
The
.Fn ulimit
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D60467: ulimit(3): Improve UL_{GET,SET}FSIZE wording
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