[Rd] Documentation bug in libPaths.Rd (PR#8050)

[Weigand.Stephen@mayo.edu]

The Details section of the help for .Library / .libPaths 
has:

  "the library search path is set to the
  existing files in 'unique(new, .Library)' 
  and this is returned."

I think 'unique(new, .Library)' should be be changed 
to 'unique(c(new, .Library))'.

Thank you,

Stephen

platform sparc-sun-solaris2.9
arch     sparc               
os       solaris2.9          
system   sparc, solaris2.9   
status                       
major    2                   
minor    1.0                 
year     2005                
month    04                  
day      18                  
language R