mono: audit fixes

Closes Homebrew/homebrew#49950.

Signed-off-by: Andrew Janke <andrew@apjanke.net>

Formula/mono.rb

@@ -18,15 +18,15 @@ class Mono < Formula
 
   option "without-fsharp", "Build without support for the F# language."
 
-  resource "fsharp" do
-    url "https://github.com/fsharp/fsharp.git", :tag => "4.0.1.0",
-        :revision => "b22167013d1f4f0c41107fd40935dc1a8fe46386"
-  end
-
   depends_on "automake" => :build
   depends_on "autoconf" => :build
   depends_on "pkg-config" => :build
 
+  resource "fsharp" do
+    url "https://github.com/fsharp/fsharp.git", :tag => "4.0.1.0",
+                                                :revision => "b22167013d1f4f0c41107fd40935dc1a8fe46386"
+  end
+
   link_overwrite "bin/fsharpi"
   link_overwrite "bin/fsharpiAnyCpu"
   link_overwrite "bin/fsharpc"
@@ -66,6 +66,14 @@ class Mono < Formula
     end
   end
 
+  def caveats; <<-EOS.undent
+    To use the assemblies from other formulae you need to set:
+      export MONO_GAC_PREFIX="#{HOMEBREW_PREFIX}"
+    Note that the 'mono' formula now includes F#. If you have
+    the 'fsharp' formula installed, remove it with 'brew uninstall fsharp'.
+    EOS
+  end
+
   test do
     test_str = "Hello Homebrew"
     test_name = "hello.cs"
@@ -133,12 +141,4 @@ class Mono < Formula
       system "#{bin}/xbuild", "test.fsproj"
     end
   end
-
-  def caveats; <<-EOS.undent
-    To use the assemblies from other formulae you need to set:
-      export MONO_GAC_PREFIX="#{HOMEBREW_PREFIX}"
-    Note that the 'mono' formula now includes F#. If you have
-    the 'fsharp' formula installed, remove it with 'brew uninstall fsharp'.
-    EOS
-  end
 end