Make expectations more explicit, update log.

CHANGELOG

@@ -1,6 +1,7 @@
 == Change Log
 
 === Edge
+* Make Git extension install method recognize submodules. [Sean Cribbs]
 * Fix malformed Textile in standard tag descriptions. [Jason Garber]
 * Update script/extension help output. [Jim Gay]
 * Allow load_subclasses to work when multiple apps are on the same database. 

spec/lib/radiant/extension/script_spec.rb

@@ -317,8 +317,9 @@
   end
 
   it "should initialize and update submodules" do
-    @git.should_receive(:system).with("cd #{Dir.tmpdir}; #{@git.checkout_command}").ordered
-    @git.should_receive(:system).with(/git submodule init && git submodule update/).ordered
+    Dir.stub!(:tmpdir).and_return('/tmp')
+    @git.should_receive(:system).with("cd /tmp; git clone http://localhost/ example").ordered
+    @git.should_receive(:system).with("cd /tmp/example; git submodule init && git submodule update").ordered
     @git.checkout
   end
 end