[ESS] Problem with ess tab-completion when max.print option is set too low

[Stephen Eglen]

 > Not sure if this is on point, but I have the following in my .emacs, 
 > that I got from Deepayan Sarkar (needs to be slightly modified now that 
 > utils swallowed rcompgen if you are using R-2.7.0):
...
 > And I get tab completion for uniq<TAB> with options(max.print = 1000) in 
 > my .Rprofile

great, thanks for testing this.  I've long had rcompgen on my list of things
to look at.  I guess we have a slight issue in that we don't want to
force ESS users into using a particular version of R, but if that can
be resolved, and if rcompgen seems more reliable, then great!  but I
won't get to look at this for a while...

Stephen