Use of isFALSE in R < 3.5

[matthijsvanderloos]

What goes wrong

While using the package in R <3.5 the following error is raised:

Error in isFALSE(.auth$auth_active) : could not find function "isFALSE"

Apparently a function in the package uses base::isFALSE() but this has only been introduced in R 3.5. The requirements for googleAuthR are R >= 3.3.0, however.

[MarkEdmondson1234]

Thanks, I will raise the requirements

[MarkEdmondson1234]

Hmm actually thats a pretty big step for just one function, instead I'll put it in as a utility like gargle does

isFALSE <- function(x) identical(x, FALSE)

So it should still be ok on R 3.3.0 after this commit.