Pkgtool feedback (#15271)

Author: ellahathaway

src/Microsoft.DotNet.MacOsPkg.Tests/Microsoft.DotNet.MacOsPkg.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>$(NetToolCurrent)</TargetFrameworks>
+    <TargetFramework>$(NetToolCurrent)</TargetFramework>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 

src/Microsoft.DotNet.MacOsPkg/Microsoft.DotNet.MacOsPkg.csproj

@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>$(NetToolCurrent)</TargetFrameworks>
+    <TargetFramework>$(NetToolCurrent)</TargetFramework>
     <OutputType>Exe</OutputType>
     <Nullable>enable</Nullable>
     <IsPackable>true</IsPackable>
-    <Description>MacOsPkg</Description>
+    <Description>The MacOsPkg tool is used for unpacking and packing MacOS .pkg files and nested .app bundles.</Description>
     <PackageTags>Arcade Build Tool MacOS Pkg</PackageTags>
     <DevelopmentDependency>false</DevelopmentDependency>
     <PackAsTool>true</PackAsTool>

src/Microsoft.DotNet.MacOsPkg/Program.cs

@@ -79,7 +79,7 @@
 }
 catch (Exception e)
 {
-    Console.Error.Write(e.Message);
+    Console.Error.WriteLine(e);
     return 1;
 }
 

src/Microsoft.DotNet.MacOsPkg/Utilities.cs

@@ -6,21 +6,21 @@
 
 namespace Microsoft.DotNet.MacOsPkg
 {
-    public static class Utilities
+    internal static class Utilities
     {
-        internal static bool IsPkg(string path) =>
+        public static bool IsPkg(string path) =>
             Path.GetExtension(path).Equals(".pkg");
 
-        internal static bool IsAppBundle(string path) =>
+        public static bool IsAppBundle(string path) =>
             Path.GetExtension(path).Equals(".app");
 
-        internal static string? FindInPath(string name, string path, bool isDirectory, SearchOption searchOption = SearchOption.AllDirectories)
+        public static string? FindInPath(string name, string path, bool isDirectory, SearchOption searchOption = SearchOption.AllDirectories)
         {
             string[] results = isDirectory ? Directory.GetDirectories(path, name, searchOption) : Directory.GetFiles(path, name, searchOption);
             return results.FirstOrDefault();
         }
 
-        internal static void CleanupPath(string path)
+        public static void CleanupPath(string path)
         {
             if (Directory.Exists(path))
             {
@@ -32,7 +32,7 @@ internal static void CleanupPath(string path)
             }
         }
 
-        internal static void CreateParentDirectory(string path)
+        public static void CreateParentDirectory(string path)
         {
             string? parent = Path.GetDirectoryName(path);
             if (!string.IsNullOrEmpty(parent))