removed trailing whitespace

Author: joshhwuu

inst/tests/tests.Rraw

@@ -18641,3 +18641,5 @@ test(2264.7, DT[, L := list(NULL)], DT1[, `:=`(L = list(NULL))])
 DT = data.table(L = list("B", "C"), i = 1L)
 DT1 = data.table(L = list("B", "C"), i = 1L)
 test(2264.8, DT[, `:=`(L = list(NULL))], DT1[, let(L = list(NULL))])
+DT = data.table(L = list("B", "C"), i = 1L)
+test(2264.9, DT[])

vignettes/datatable-reference-semantics.Rmd

@@ -127,7 +127,7 @@ l = list(1L:3L)
 
 DT[, new_int := l] # Standard form, new column is integer
 
-DT[, `:=`(new_list = l)] # Functional form, new column is a list of integer vectors 
+DT[, `:=`(new_list = l)] # Functional form, new column is a list of integer vectors
 
 DT[, new_list := list(l)] # Same as above, we can see that `:=` is an alias to list in functional form