Reading text files and readLine

Hi,

I am trying to write a function to read in a whole text file as a single
string ( so I can calculate its "sha1" hash function using package
"digest"). I need a single string containing the whole file, and so far I
was using paste(readLines(fileName), collapse = ""). Unfortunately this
function gives me warnings :

incomplete final line found by readLines on 'test2.xml' 

due to lack of end-of-line character on the end of the file. Is there a way
to suppress this warning? Or another function capable of reading whole text
file into a string?

Jarek
=====================================\====                 
Jarek Tuszynski, PhD.                               o / \ 
Science Applications International Corporation  <\__,|  
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Jaroslaw.W.Tuszynski at saic.com                   `    \