fix header length

Author: kain88-de

package/MDAnalysis/lib/formats/include/readdcd.h

@@ -736,10 +736,10 @@ int write_dcdheader(fio_fd fd, const char *remarks, int N,
   }
   fio_write_int32(fd, 84);
   fio_write_int32(fd, 164);
-  fio_write_int32(fd, 3); /* the number of 80 character title strings */
+  fio_write_int32(fd, 2); /* the number of 80 character title strings */
 
-  strncpy(title_string, remarks, 240);
-  WRITE(fd, title_string, 240);
+  strncpy(title_string, remarks, 160);
+  WRITE(fd, title_string, 160);
 
   fio_write_int32(fd, 164);
   fio_write_int32(fd, 4);