Do not escape backslashes in TSV by default

This is how the first edition parser worked, and doing so breaks the
eurostat package

Author: jimhester

R/read_delim.R

@@ -368,7 +368,7 @@ read_tsv <- function(file, col_names = TRUE, col_types = NULL,
     skip_empty_rows = skip_empty_rows,
     trim_ws = trim_ws,
     escape_double = TRUE,
-    escape_backslash = TRUE,
+    escape_backslash = FALSE,
     locale = locale,
     guess_max = guess_max,
     show_col_types = show_col_types,