Mpersify parser of utime syscall

Fix multiple personalities support in parser of utime syscall by using
mpersified utimbuf_t typedef.

* utime.c (utimbuf_t): New typedef.  Mpersify it.
(sys_utime): Use it instead of a locally defined union.
diff --git a/utime.c b/utime.c
index b21c799..4f8f40a 100644
--- a/utime.c
+++ b/utime.c
@@ -1,31 +1,23 @@
 #include "defs.h"
 
+#include DEF_MPERS_TYPE(utimbuf_t)
+
+#include <utime.h>
+
+typedef struct utimbuf utimbuf_t;
+
+#include MPERS_DEFS
+
 SYS_FUNC(utime)
 {
-	union {
-		long utl[2];
-		int uti[2];
-		long paranoia_for_huge_wordsize[4];
-	} u;
-	unsigned wordsize;
+	utimbuf_t u;
 
 	printpath(tcp, tcp->u_arg[0]);
 	tprints(", ");
-
-	wordsize = current_wordsize;
-	if (umoven_or_printaddr(tcp, tcp->u_arg[1], 2 * wordsize, &u))
-		;
-	else if (wordsize == sizeof u.utl[0]) {
-		tprintf("[%s,", sprinttime(u.utl[0]));
-		tprintf(" %s]", sprinttime(u.utl[1]));
+	if (!umove_or_printaddr(tcp, tcp->u_arg[1], &u)) {
+		tprintf("[%s,", sprinttime(u.actime));
+		tprintf(" %s]", sprinttime(u.modtime));
 	}
-	else if (wordsize == sizeof u.uti[0]) {
-		tprintf("[%s,", sprinttime(u.uti[0]));
-		tprintf(" %s]", sprinttime(u.uti[1]));
-	}
-	else
-		tprintf("<decode error: unsupported wordsize %d>",
-			wordsize);
 
 	return RVAL_DECODED;
 }