cvs-tree-print is a compiled Lisp function in `cvs-status.el'.

(cvs-tree-print TAGS PRINTER COLUMN)

Print the tree of TAGS where each tag's string is given by PRINTER.
PRINTER should accept both a tag (in which case it should return a string)
or a string (in which case it should simply return its argument).
A tag cannot be a CONS. The return value can also be a list of strings,
if several nodes where merged into one.
The tree will be printed no closer than column COLUMN.