Prior to this commit, the 3x function handler assumed that at
least two arguments (the name and one or more additional arguments)
were passed into newfunction when creating a 3x function. However
that is not actually required, the only argument needed is the name.
Update the 3x function handler so that it will not throw and exception
if only one argument is given.
Due to the changes in PUP-3900 which renamed Puppetx to PuppetX
and puppetx to puppet_x, strings was failing since the namespace
had not been updated in strings. In order to be compatible with this
change, update strings by renaming the namespace to match.
In order to ensure strings is still compatible with earlier versions
of puppet that don't include the namespace change, declare our own
PuppetX module. This way, if it is an older version and the namespace
is called Puppetx, the necessary PuppetX namespace will be created.
Hailee Kenney