Karl Berry wrote all files not otherwise marked, with help from Kathryn
Hargreaves on some of the original versions.

Thomas Esser originated most of the MakeTeX... scripts.  Subsequent changes
were made by Olaf Weber and Thomas Esser.

The brace expansion code in expand.c was written by Olaf Weber, replacing
the original code borrowed from bash.

The implementation of the link trick in pathsearch.c is taken from GNU
find, implemented by David MacKenzie from Matthew Farwell's suggestion.
