session info is too verbose; print the package version instead

yihui · yihui · commit 70e1dedd9e6e · 2026-01-17T00:11:38.000-06:00
diff --git a/vignettes/formatR.Rmd b/vignettes/formatR.Rmd
@@ -46,7 +46,7 @@ the development version.
 
 ```{r}
 library(formatR)
-sessionInfo()
+packageVersion('formatR')
 ```
 
 ## 2. Reformat R code
