<expr> should be listed first

[wch]

In this example, <expr> is not the first file listed, but it should be.

# Make sure ggplot2 has source refs
install.packages("ggplot2", type="source", INSTALL_opts="--with-keep.source")

library(profvis)
library(ggplot2)

profvis({
  g <- ggplot(mtcars, aes(wt, mpg)) + geom_point()
  print(g)			
})