updated for version 7.4.649

Problem:    Compiler complains about ignoring return value of fwrite().
            (Michael Jarvis)
Solution:   Add (void).

src/misc2.c

@@ -6286,7 +6286,7 @@ put_time(fd, the_time)
     char_u	buf[8];
 
     time_to_bytes(the_time, buf);
-    fwrite(buf, (size_t)8, (size_t)1, fd);
+    (void)fwrite(buf, (size_t)8, (size_t)1, fd);
 }
 
 /*