Merge pull request #476 from jiho/fix/doc-scale-hue

scale_***_hue should reference discrete_scale

R/scale-hue.r

@@ -1,7 +1,7 @@
 #' Qualitative colour scale with evenly spaced hues.
 #' 
 #' @param na.value Colour to use for missing values
-#' @param ... Other arguments passed on to \code{\link{continuous_scale}} 
+#' @param ... Other arguments passed on to \code{\link{discrete_scale}} 
 #'   to control name, limits, breaks, labels and so forth.
 #' @inheritParams scales::hue_pal
 #' @rdname scale_hue