PEcAn.utils::read_web_config numeric parsing not preserved when expand is true

[infotroph]

If you feel like it, changing the expand block in the function to this should fix the parsing bug:

  if (expand) {
    # Replace $output_folder with its value, and concatenate strings
    chr <- vapply(config_list, is.character, logical(1))
    config_list[chr] <- lapply(config_list[chr], gsub,
                               pattern = "\\$output_folder *\\. *",
                               replacement = config_list[["output_folder"]])
  }

Basically, the gsub call on every element was re-converting everything back to character.

Originally posted by @ashiklom in #2420 (comment)

[infotroph]

> read_web_config("config.php", parse = TRUE, expand = FALSE)$pagesize
[1] 30
> read_web_config("config.php", parse = TRUE, expand = TRUE)$pagesize
[1] "30"