create: Pass fetch value directly into constructor

Library/Homebrew/dev-cmd/create.rb

@@ -140,7 +140,7 @@ module Homebrew
   end
 
   def create_formula(args:)
-    fc = FormulaCreator.new(args)
+    fc = FormulaCreator.new(args, !args.no_fetch?)
     fc.name = if args.set_name.blank?
       stem = Pathname.new(args.named.first).stem.rpartition("=").last
       print "Formula name [#{stem}]: "

Library/Homebrew/formula_creator.rb

@@ -12,8 +12,9 @@ module Homebrew
     attr_reader :args, :url, :sha256, :desc, :homepage
     attr_accessor :name, :version, :tap, :mode, :license
 
-    def initialize(args)
+    def initialize(args, fetch=true)
       @args = args
+      @fetch = fetch
     end
 
     def url=(url)
@@ -41,10 +42,6 @@ module Homebrew
       end
     end
 
-    def fetch?
-      !args.no_fetch?
-    end
-
     def head?
       @head || args.HEAD?
     end
@@ -58,7 +55,7 @@ module Homebrew
 
       if version.nil? || version.null?
         odie "Version cannot be determined from URL. Explicitly set the version with `--set-version` instead."
-      elsif fetch?
+      elsif @fetch
         unless head?
           r = Resource.new
           r.url(url)