Allow no colnames with PDF output when booktabs enabled
diff --git a/R/kableExtra-package.R b/R/kableExtra-package.R
index 7b4b72b..67d8558 100644
--- a/R/kableExtra-package.R
+++ b/R/kableExtra-package.R
@@ -55,6 +55,7 @@
#' vanilla rmarkdown. For customized rmarkdown templates, it is recommended to
#' load related LaTeX packages manually.
#'
+#' @importFrom stringi stri_replace_all_fixed
#' @importFrom stringr str_count str_split str_match str_detect str_match_all
#' str_extract str_replace_all str_trim str_extract_all str_sub str_replace
#' @importFrom xml2 read_xml xml_attr xml_has_attr xml_attr<- read_html