Change last parameter of umoven() from char* to void*

Saves tons of casts.

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
diff --git a/utime.c b/utime.c
index 6e396b0..ba25356 100644
--- a/utime.c
+++ b/utime.c
@@ -19,7 +19,7 @@
 			tprints("NULL");
 		else if (!verbose(tcp))
 			tprintf("%#lx", tcp->u_arg[1]);
-		else if (umoven(tcp, tcp->u_arg[1], 2 * wordsize, (char *) &u) < 0)
+		else if (umoven(tcp, tcp->u_arg[1], 2 * wordsize, &u) < 0)
 			tprints("[?, ?]");
 		else if (wordsize == sizeof u.utl[0]) {
 			tprintf("[%s,", sprinttime(u.utl[0]));