Extraneous assignment in rev(1)

[Bill Marquette]

This was noticed in openbsd by bret.lambert at gmail.com, but it looks
like DragonFly uses the same code.

Index: usr.bin/rev/rev.c
===================================================================
RCS file: /home/dcvs/src/usr.bin/rev/rev.c,v
retrieving revision 1.6
diff -u -r1.6 rev.c
--- usr.bin/rev/rev.c   14 Dec 2004 18:22:09 -0000      1.6
+++ usr.bin/rev/rev.c   4 Jul 2006 21:48:05 -0000
@@ -95,7 +95,6 @@
        while ((p = fgetln(fp, &len)) != NULL) {
                        if (p[len - 1] == '\n')
                                --len;
-                       t = p + len - 1;
                        for (t = p + len - 1; t >= p; --t)
                                putchar(*t);
                        putchar('\n');