Update command descriptions to also mention GITHUB_OWNED_STORAGE_MULTIPART_MEBIBYTES

Author: brianaj

src/bbs2gh/Commands/GenerateScript/GenerateScriptCommand.cs

@@ -128,7 +128,8 @@ public GenerateScriptCommand() : base(
     public Option<bool> UseGithubStorage { get; } = new("--use-github-storage")
     {
         IsHidden = true,
-        Description = "Enables multipart uploads to a GitHub owned storage for use during migration",
+        Description = "Enables multipart uploads to a GitHub owned storage for use during migration. " +
+                      "Configure chunk size with the GITHUB_OWNED_STORAGE_MULTIPART_MEBIBYTES environment variable (default: 100 MiB, minimum: 5 MiB).",
     };
 
     public override GenerateScriptCommandHandler BuildHandler(GenerateScriptCommandArgs args, IServiceProvider sp)

src/bbs2gh/Commands/MigrateRepo/MigrateRepoCommand.cs

@@ -201,7 +201,8 @@ public MigrateRepoCommand() : base(
                      "If your Bitbucket instance has a self-signed SSL certificate then setting this flag will allow the migration archive to be exported.");
     public Option<bool> UseGithubStorage { get; } = new(
         name: "--use-github-storage",
-        description: "Enables multipart uploads to a GitHub owned storage for use during migration")
+        description: "Enables multipart uploads to a GitHub owned storage for use during migration. " +
+                     "Configure chunk size with the GITHUB_OWNED_STORAGE_MULTIPART_MEBIBYTES environment variable (default: 100 MiB, minimum: 5 MiB).")
     { IsHidden = true };
 
     public override MigrateRepoCommandHandler BuildHandler(MigrateRepoCommandArgs args, IServiceProvider sp)

src/gei/Commands/GenerateScript/GenerateScriptCommand.cs

@@ -108,7 +108,8 @@ public GenerateScriptCommand() : base(
         public Option<bool> UseGithubStorage { get; } = new("--use-github-storage")
         {
             IsHidden = true,
-            Description = "Enables multipart uploads to a GitHub owned storage for use during migration",
+            Description = "Enables multipart uploads to a GitHub owned storage for use during migration. " +
+                          "Configure chunk size with the GITHUB_OWNED_STORAGE_MULTIPART_MEBIBYTES environment variable (default: 100 MiB, minimum: 5 MiB).",
         };
 
         public override GenerateScriptCommandHandler BuildHandler(GenerateScriptCommandArgs args, IServiceProvider sp)

src/gei/Commands/MigrateRepo/MigrateRepoCommand.cs

@@ -109,7 +109,8 @@ public MigrateRepoCommand() : base(
         public Option<bool> UseGithubStorage { get; } = new("--use-github-storage")
         {
             IsHidden = true,
-            Description = "Enables multipart uploads to a GitHub owned storage for use during migration",
+            Description = "Enables multipart uploads to a GitHub owned storage for use during migration. " +
+                          "Configure chunk size with the GITHUB_OWNED_STORAGE_MULTIPART_MEBIBYTES environment variable (default: 100 MiB, minimum: 5 MiB).",
         };
 
         // Pre-uploaded archive urls, hidden by default