Fix license header to reflect the actual license of two files

Fix license header to reflect the actual license of two files

Note that the license was changed by the author to MIT-style in this
commit:

  commit 745214b242fb455492855f59df3ba08391964cf9
  Author: gbaumann <gbaumann>
  Date:   Sun Mar 13 18:00:55 2005 +0000

      Gross license change

But one file was accidentally still referring to LGPL in the header line
on top of the MIT license, and the same issue also accidentally
re-introduced in other file when renaming it.