Fixes for apt module

apt

@@ -138,13 +138,13 @@ def main():
         # reopen cache w/ modified config
         cache.open(progress=None)
 
-    if modules.boolean(p['update_cache'])
+    if module.boolean(p['update_cache']):
         cache.update()
         cache.open(progress=None)
         if p['package'] == None:
             module.exit_json(changed=False)
 
-    force_yes = modules.boolean(p['force'])
+    force_yes = module.boolean(p['force'])
 
     if p['package'].count('=') > 1:
         module.fail_json(msg='invalid package spec')
@@ -161,7 +161,7 @@ def main():
         install(module, p['package'], cache, default_release=p['default_release'],
                   install_recommends=install_recommends,force=force_yes)
     elif p['state'] == 'removed':
-        remove(module, p['package'], cache, purge = modules.boolean(p['purge']))
+        remove(module, p['package'], cache, purge = module.boolean(p['purge']))
 
 # this is magic, see lib/ansible/module_common.py
 #<<INCLUDE_ANSIBLE_MODULE_COMMON>>