Fix hhvm cli tests

Author: mblaschke

tests/serverspec/spec/shared/hhvm/version.rb

@@ -1,5 +1,11 @@
 shared_examples 'hhvm::cli::version' do
-    describe command('php -v') do
+    describe command('hhvm --version') do
+        its(:stdout) { should match %r!HipHop VM [0-9]+.[0-9]+.[0-9]+ \(rel\)! }
+
+        its(:exit_status) { should eq 0 }
+    end
+    
+    describe command('php --version') do
         its(:stdout) { should match %r!HipHop VM [0-9]+.[0-9]+.[0-9]+ \(rel\)! }
 
         its(:exit_status) { should eq 0 }