The echo function appears to have a syntax inconsistency - not fatal, but a bit confusing.

The documented format for the the function is:

    echo(string arg1, string argn...);

This form produces a parse error if there is more than one argument.  On the other hand, leaving
out the parentheses as in:

    echo string arg1, string argn...; 

works as expected.  This isn't critical, but perhaps some notice needs to be made of the situation, or the
documentation needs to be updated to reflect this quirk.  It would have saved me a few minutes of 
farting around trying to figure out why echo() wouldn't work when I gave it multiple arguments as per
the docs.