Simplify Range's step error message (#10835)

Author: eksperimental

lib/elixir/lib/calendar/date.ex

@@ -133,8 +133,8 @@ defmodule Date do
         step
       ) do
     raise ArgumentError,
-          "both dates must have matching calendar and the step must be an integer " <>
-            "different than zero, got: #{inspect(first)}, #{inspect(last)}, #{step}"
+          "both dates must have matching calendar and the step must be a " <>
+            "non-zero integer, got: #{inspect(first)}, #{inspect(last)}, #{step}"
   end
 
   defp range(first, first_days, last, last_days, calendar, step) do

lib/elixir/lib/kernel.ex

@@ -3755,7 +3755,7 @@ defmodule Kernel do
   defp validate_step!(step)
        when is_float(step) or is_atom(step) or is_binary(step) or is_list(step) or step == 0 do
     raise ArgumentError,
-          "ranges (first..last//step) expect the step to be an integer different than zero, " <>
+          "ranges (first..last//step) expect the step to be a non-zero integer, " <>
             "got: #{Macro.to_string(step)}"
   end
 

lib/elixir/lib/range.ex

@@ -146,8 +146,8 @@ defmodule Range do
 
   def new(first, last, step) do
     raise ArgumentError,
-          "ranges (first..last//step) expect both sides to be integers and the step to be an integer " <>
-            "different than zero, got: #{inspect(first)}..#{inspect(last)}//#{inspect(step)}"
+          "ranges (first..last//step) expect both sides to be integers and the step to be a " <>
+            "non-zero integer, got: #{inspect(first)}..#{inspect(last)}//#{inspect(step)}"
   end
 
   @doc """

lib/elixir/test/elixir/calendar/date_range_test.exs

@@ -128,14 +128,14 @@ defmodule Date.RangeTest do
 
   test "step is a non-zero integer" do
     step = 1.0
-    message = ~r"the step must be an integer different than zero"
+    message = ~r"the step must be a non-zero integer"
 
     assert_raise ArgumentError, message, fn ->
       Date.range(~D[2000-01-01], ~D[2000-01-31], step)
     end
 
     step = 0
-    message = ~r"the step must be an integer different than zero"
+    message = ~r"the step must be a non-zero integer"
 
     assert_raise ArgumentError, message, fn ->
       Date.range(~D[2000-01-01], ~D[2000-01-31], step)

lib/elixir/test/elixir/range_test.exs

@@ -62,11 +62,11 @@ defmodule RangeTest do
 
   test "step is a non-zero integer" do
     step = 1.0
-    message = ~r"the step to be an integer different than zero"
+    message = ~r"the step to be a non-zero integer"
     assert_raise ArgumentError, message, fn -> 1..3//step end
 
     step = 0
-    message = ~r"the step to be an integer different than zero"
+    message = ~r"the step to be a non-zero integer"
     assert_raise ArgumentError, message, fn -> 1..3//step end
   end