update cross references ahead of CRAN release

R/chart.RollingCorrelation.R

@@ -15,7 +15,7 @@
 #' @param \dots any other passthru parameters
 #' @param fill a three-component vector or list (recycled otherwise) providing 
 #' filling values at the left/within/to the right of the data range. See the 
-#' fill argument of \code{\link{zoo::na.fill}} for details.
+#' fill argument of \code{\link[zoo]{na.fill}} for details.
 #' @details The previous parameter \code{na.pad} has been replaced with \code{fill}; use \code{fill = NA} instead of 
 #' \code{na.pad = TRUE}, or \code{fill = NULL} instead of \code{na.pad = FALSE}.
 #' @author Peter Carl

R/chart.RollingMean.R

@@ -13,7 +13,7 @@
 #' @param \dots any other passthru parameters
 #' @param fill a three-component vector or list (recycled otherwise) providing 
 #' filling values at the left/within/to the right of the data range. See the 
-#' fill argument of \code{\link{zoo::na.fill}} for details.
+#' fill argument of \code{\link[zoo]{na.fill}} for details.
 #' @details The previous parameter \code{na.pad} has been replaced with \code{fill}; use \code{fill = NA} instead of 
 #' \code{na.pad = TRUE}, or \code{fill = NULL} instead of \code{na.pad = FALSE}.
 #' @author Peter Carl

R/chart.RollingPerformance.R

@@ -11,7 +11,7 @@
 #' \code{\link{Return.annualized}} will)
 #' @param fill a three-component vector or list (recycled otherwise) providing 
 #' filling values at the left/within/to the right of the data range. See the 
-#' fill argument of \code{\link{zoo::na.fill}} for details.
+#' fill argument of \code{\link[zoo]{na.fill}} for details.
 #' @param main set the chart title, same as in \code{\link{plot}}
 #' @param ylim set the y-axis limit, same as in \code{\link{plot}}
 #' @param \dots any other passthru parameters to \code{\link{plot}} or the