file.c: move utime parser to a separate file

* utime.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* file.c (sys_utime): Move to utime.c.
diff --git a/utime.c b/utime.c
new file mode 100644
index 0000000..6e396b0
--- /dev/null
+++ b/utime.c
@@ -0,0 +1,37 @@
+#include "defs.h"
+
+int
+sys_utime(struct tcb *tcp)
+{
+	union {
+		long utl[2];
+		int uti[2];
+		long paranoia_for_huge_wordsize[4];
+	} u;
+	unsigned wordsize;
+
+	if (entering(tcp)) {
+		printpath(tcp, tcp->u_arg[0]);
+		tprints(", ");
+
+		wordsize = current_wordsize;
+		if (!tcp->u_arg[1])
+			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)
+			tprints("[?, ?]");
+		else if (wordsize == sizeof u.utl[0]) {
+			tprintf("[%s,", sprinttime(u.utl[0]));
+			tprintf(" %s]", sprinttime(u.utl[1]));
+		}
+		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 0;
+}