Mention 'readr' package, must->should

ices-tools-prod · Dec 3, 2019 · dcab37f · dcab37f
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diff --git a/R/file.encoding.R b/R/file.encoding.R
@@ -15,7 +15,10 @@
 #' The encoding \code{"unknown"} indicates that the file is an ASCII text file
 #' or a binary file.
 #'
-#' In TAF, text files that have non-ASCII characters must be encoded as UTF-8.
+#' In TAF, text files that have non-ASCII characters should be encoded as UTF-8.
+#'
+#' If this function fails in Windows, the \code{guess_encoding} function in the
+#' \pkg{readr} package may help.
 #'
 #' @seealso
 #' \code{\link{Encoding}} examines the encoding of a string.

diff --git a/man/file.encoding.Rd b/man/file.encoding.Rd