Ensure that "The value '…' is not in a correct format" ends with a new line

It's weird when an error message doesn't have a newline in a CLI app.

Note that all other CommandParseException exceptions created through CommandLineParseExceptionFactory are properly ended with a new line.

Author: 0xced

src/Spectre.Console.Cli.Tests/CommandAppTests.Pairs.cs

@@ -192,7 +192,7 @@ public void Should_Throw_If_Value_Is_Not_In_A_Valid_Format_Using_Default_Deconst
             string input, string expected)
         {
             // Given
-            var app = new CommandAppTester();
+            var app = new CommandAppTester { TestSettings = { TrimConsoleOutput = false } };
             app.SetDefaultCommand<GenericCommand<DefaultPairDeconstructorSettings>>();
 
             // When
@@ -203,7 +203,7 @@ public void Should_Throw_If_Value_Is_Not_In_A_Valid_Format_Using_Default_Deconst
 
             // Then
             result.ExitCode.ShouldBe(-1);
-            result.Output.ShouldBe(expected);
+            result.Output.ShouldBe(expected + Environment.NewLine);
         }
 
         [Fact]

src/Spectre.Console.Cli/CommandParseException.cs

@@ -110,7 +110,7 @@ internal static CommandParseException UnknownOption(IEnumerable<string> args, Co
 
     internal static CommandParseException ValueIsNotInValidFormat(string value)
     {
-        var text = $"[red]Error:[/] The value '[white]{value}[/]' is not in a correct format";
+        var text = $"[red]Error:[/] The value '[white]{value}[/]' is not in a correct format{Environment.NewLine}";
         return new CommandParseException("Could not parse value", new Markup(text));
     }