the string is not necessarily ASCII (tkelman)

Author: rfourquet

base/random.jl

@@ -1421,7 +1421,7 @@ end
 """
     randstring([rng=GLOBAL_RNG], [chars::AbstractArray{<:Union{UInt8,Char}}], [len=8])
 
-Create a random ASCII string of length `len`, consisting of characters
+Create a random string of length `len`, consisting of characters
 from `chars` if specified, and of upper- and lower-case letters and
 the digits 0-9 otherwise. The optional `rng` argument specifies a
 random number generator, see [Random Numbers](@ref).