tcp_rack.4: Correct a link in the SEE ALSO section

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share/man/man4/tcp_rack.4

@@ -23,7 +23,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd November 7, 2022
+.Dd March 19, 2023
 .Dt TCP_RACK 4
 .Os
 .Sh NAME
@@ -140,7 +140,7 @@ What method should we use for rate sampling 0=high, 1=low
 .%A "Ahmed M. Abdelmoniem"
 .%A "Brahim Bensaou"
 .%T "T-RACKs: A Faster Recovery Mechanism for TCP in Data Center Networks"
-.%O "https://arxiv.org/pdf/2102.07477.pdf"
+.%O "https://arxiv.org/abs/2102.07477"
 .%D "February 2021"
 .Re
 .Sh HISTORY