Text-only `.Rmd` files - first sentence parsed as R code

[russHyde]

Using b72e524

"my_file.Rmd"

---
Title: "my_title"
---
Just text in here!

devtools::load_all() # load lintr master

lintr::lint("my_file.Rmd", linters = default_linters)

Gives the erroneous: "Line 5: unexpected symbol" lint when ran in rstudio.