Fix errors in puppet-syntax-future

puppet-syntax-future job is failing because of a syntax error in the
manifests.
This patch aims to fix it.

Change-Id: Ib471e862bb7a9f735c5c6f045f4c627723dd6c3a
(cherry picked from commit 5e07f511b4)
(cherry picked from commit 736587a878)

manifests/database/sql/mysql.pp

@@ -417,7 +417,7 @@ class cloud::database::sql::mysql (
       }
     } # Debian
     default: {
-      err "${::osfamily} not supported yet"
+      fail("${::osfamily} not supported yet")
     }
   }
 

manifests/network.pp

@@ -89,7 +89,7 @@ class cloud::network(
       $core_plugin = 'neutron.plugins.cisco.network_plugin.PluginV2'
     }
     default: {
-      err "${plugin} plugin is not supported."
+      fail("${plugin} plugin is not supported.")
     }
   }
 

manifests/network/controller.pp

@@ -254,7 +254,7 @@ class cloud::network::controller(
     }
 
     default: {
-      err "${plugin} plugin is not supported."
+      fail("${plugin} plugin is not supported.")
     }
   }
 

manifests/network/vswitch.pp

@@ -215,7 +215,7 @@ class cloud::network::vswitch(
     }
 
     default: {
-      err "${driver} driver is not supported."
+      fail("${driver} driver is not supported.")
     }
   }
 

spec/classes/cloud_network_vswitch_spec.rb

@@ -133,7 +133,7 @@ describe 'cloud::network::vswitch' do
       before :each do
         params.merge!(:driver => 'Something')
       end
-      it { should compile.and_raise_error(/Something plugin is not supported./) }
+      it_raises 'a Puppet::Error', /Something driver is not supported./
     end
 
     context 'with default firewall enabled' do