How to remove latex message from a resulting rmarkdown pdf?

Hello

I am using rmarkdown to write the partial results of my research project.  Both html and pdf files are used. In the resulting pdf xtable writes the following msg:

% latex table generated in R 3.1.1 by xtable 1.7-3 package % Sat Aug 2 21:42:16 2014


How can I remove such a msg?

Many thanks

Ed


Below you will find the info on my system and a rmakrdown example to reproduce the msg.

R version 3.1.1 (2014-07-10)
Platform: x86_64-apple-darwin13.1.0 (64-bit)

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8


loaded via a namespace (and not attached):
  [1] cluster_1.15.2
  [2] colorspace_1.2-4
  [3] digest_0.6.4
  [4] evaluate_0.5.5
  [5] formatR_0.10
  [6] gtable_0.1.2
  [7] htmltools_0.2.4
  [8] knitr_1.6
  [9] labeling_0.2
[10] latticeExtra_0.6-26
[11] MASS_7.3-33
[12] munsell_0.4.2
[13] plyr_1.8.1
[14] proto_0.3-10
[15] RColorBrewer_1.0-5
[16] Rcpp_0.11.2
[17] reshape2_1.4
[18] rmarkdown_0.2.53
[19] scales_0.2.4
[20] stringr_0.6.2
[21] tools_3.1.1
[22] yaml_2.1.13

RStudio - Version 0.98.987

and ExampleA.Rmd

---
title: "Example - Latex message on the resulting pdf"
output: pdf_document
---

```{r r princ, echo=FALSE, warning=FALSE, results='asis', message=FALSE}
library(xtable,quietly = TRUE,warn.conflicts = FALSE, verbose = FALSE)
exampleAinfo=data.frame(matrix(runif(84),21,4))
names(exampleAinfo)=c("Column 1","Column 2","Column 3","Column 4")
```


# Example

```{r exampleA, results='asis', echo=FALSE, tidy=FALSE}
exampleAinfo.table <- xtable(exampleAinfo, caption="Example A", digits=6)
print(exampleAinfo.table, include.rownames = FALSE, floating=FALSE)
```



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