Fix a typo.

git-svn-id: svn://tug.org/texlive/trunk/Build/source@29301 c570f23f-e606-0410-a88d-b1316a301751
Fixed typos

git-svn-id: svn://tug.org/texlive/trunk/Build/source@29304 c570f23f-e606-0410-a88d-b1316a301751
hb-ft.{cc,h} no longer used
Fixed typos

git-svn-id: svn://tug.org/texlive/trunk/Build/source@29304 c570f23f-e606-0410-a88d-b1316a301751
xetex-*.ch are long gone