fixed AllFilesMask for Amiga and some comment typos

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@27057 3ad0048d-3df7-0310-abae-a5850022a9f2
Amiga: fixed copyright header and merged a fix from MorphOS in sysdir

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@27058 3ad0048d-3df7-0310-abae-a5850022a9f2