Unexpected `String=number:toString(number base)` output

[Vulae]

Describe the bug

String=number:toString(number base) converts number to selected base incorrectly except when converting to base 10.

How to reproduce the bug

assert(0:toString(16) == "0")
assert(1:toString(16) == "") # Should be "1"
assert(2:toString(16) == "2")
assert(15:toString(16) == "F")
assert(16:toString(16) == "0") # Should be "10"
assert(17:toString(16) == "11")

assert(0:toString(2) == "0")
assert(1:toString(2) == "") # Should be "1"
assert(2:toString(2) == "0") # Should be "10"
assert(3:toString(2) == "11")
assert(4:toString(2) == "00") # Should be "100"
assert(5:toString(2) == "101")

assert(0:toString(36) == "0")
assert(1:toString(36) == "") # Should be "1"
assert(2:toString(36) == "2")
# ...

# These are expected, probably because it just uses the normal number:toString()
assert(0:toString(10) == "0")
assert(1:toString(10) == "1")
assert(2:toString(10) == "2")

assert(0:toString() == "0")
assert(1:toString() == "1")
assert(2:toString() == "2")

[vurvdev]

wire/lua/entities/gmod_wire_expression2/core/number.lua

Line 587 in 84c01cd

local out, loops, d = {}, ceil(log(number) / log(base)), 0

- local out, loops, d = {}, ceil(log(number) / log(base)), 0
+ local out, loops, d = {}, floor(log(number) / log(base)) + 1, 0