Tools: improper error messages
The error messages seem to speak about C++, not shell:
$ v evaluate
error: evaluate: no matching algorithm
candidates are:
weight evaluate(const automaton& aut, const word& l)
weight evaluate(const automaton& aut, const polynomial& p)
instead of:
$ v evaluate --help
usage: vcsn evaluate [OPTIONS...] [ARGS...]
Available versions:
AUT:automaton L:word -> weight
Evaluate L on AUT.
AUT:automaton P:polynomial -> weight
Evaluate P on AUT.
For more help about available options, please use "vcsn tools --help"
Also, the last line lacks a period.