recv.2: Remove an extra space in the formatted output

[Josiah Frentsos]

Index: lib/libc/sys/recv.2
===================================================================
RCS file: /cvs/src/lib/libc/sys/recv.2,v
retrieving revision 1.50
diff -u -p -r1.50 recv.2
--- lib/libc/sys/recv.2 9 Sep 2022 16:48:25 -0000       1.50
+++ lib/libc/sys/recv.2 16 Aug 2023 22:08:42 -0000
@@ -61,7 +61,7 @@ are used to receive messages from a sock
 is normally used only on a
 .Em connected
 socket (see
-.Xr connect 2 ).
+.Xr connect 2 ) .
 .Fn recvfrom ,
 .Fn recvmsg ,
 and