missing ','

Author: MichaelChirico

R/merge.R

@@ -72,7 +72,7 @@ merge.data.table = function(x, y, by = NULL, by.x = NULL, by.y = NULL, all = FAL
     } else {
       named_idx = nzchar(nm)
       if (all(named_idx)) {
-        warningf(ngettext(n_dots, "merge.data.table() received %d unknown keyword argument which will be ignored: %s"
+        warningf(ngettext(n_dots, "merge.data.table() received %d unknown keyword argument which will be ignored: %s",
                                   "merge.data.table() received %d unknown keyword arguments which will be ignored: %s"),
                  n_dots, brackify(nm))
       } else {