dev-cmd/typecheck: Make an --update switch for automatic updates

- This was suggested in https://github.com/Homebrew/brew/pull/8741#discussion_r490949486.

Library/Homebrew/dev-cmd/typecheck.rb

@@ -16,10 +16,8 @@ module Homebrew
       EOS
       switch "-q", "--quiet",
              description: "Silence all non-critical errors."
-      switch "--update-definitions",
-             description: "Update Tapioca gem definitions of recently bumped gems"
-      switch "--prune-files-list",
-             description: "Remove deleted filepaths from #{SORBET_FILES_YAML}"
+      switch "--update",
+             description: "Update RBI files and prune #{SORBET_FILES_YAML}"
       switch "--fail-if-not-changed",
              description: "Return a failing status code if all gems are up to date " \
                           "and gem definitions do not need a tapioca update"
@@ -41,7 +39,8 @@ module Homebrew
     Homebrew.install_bundler_gems!
 
     HOMEBREW_LIBRARY_PATH.cd do
-      if args.prune_files_list?
+      if args.update?
+        ohai "Checking for deleted filenames in #{SORBET_FILES_YAML}..."
         lines_to_keep = []
         sorbet_keywords = ["true:", "false:", "strict:", "strong:"]
 
@@ -52,12 +51,11 @@ module Homebrew
             filepath = line.split(" ").last
             lines_to_keep << line if File.exist?(filepath)
           end
-        end
 
           File.write(SORBET_FILES_YAML, "#{lines_to_keep.join("\n")}\n")
         end
 
-      if args.update_definitions?
+        ohai "Updating Tapioca RBI files..."
         system "bundle", "exec", "tapioca", "sync"
         system "bundle", "exec", "srb", "rbi", "hidden-definitions"
         system "bundle", "exec", "srb", "rbi", "todo"

docs/Manpage.md

@@ -1244,10 +1244,8 @@ Check for typechecking errors using Sorbet.
 
 * `-q`, `--quiet`:
   Silence all non-critical errors.
-* `--update-definitions`:
-  Update Tapioca gem definitions of recently bumped gems
-* `--prune-files-list`:
-  Remove deleted filepaths from sorbet/files.yaml
+* `--update`:
+  Update RBI files and prune sorbet/files.yaml
 * `--fail-if-not-changed`:
   Return a failing status code if all gems are up to date and gem definitions do not need a tapioca update
 * `--dir`:

manpages/brew.1

@@ -1718,12 +1718,8 @@ Check for typechecking errors using Sorbet\.
 Silence all non\-critical errors\.
 .
 .TP
-\fB\-\-update\-definitions\fR
-Update Tapioca gem definitions of recently bumped gems
-.
-.TP
-\fB\-\-prune\-files\-list\fR
-Remove deleted filepaths from sorbet/files\.yaml
+\fB\-\-update\fR
+Update RBI files and prune sorbet/files\.yaml
 .
 .TP
 \fB\-\-fail\-if\-not\-changed\fR