Docpack app has several help files included. Tinypad and CEdit run the
app to show one of sysfuncs.txt/sysfuncr.txt files. The text editors
pass a one-letter argument to specify the text file. It used to be 'f'
for sysfuncs, it has become 'e' recently. Update this one-letter
argument both in tinypad and cedit.
Resolve#216
