* fixing jason syntax error.

Signed-off-by: Nick Chappell <nick@intronic.org>

Merged in from: https://github.com/Icinga/puppet-icinga2/pull/13

refs #7283: https://dev.icinga.org/issues/7283

metadata.json

@@ -18,7 +18,7 @@
     {
       "operatingsystem": "Debian",
       "operatingsystemmajrelease": [
-        "7",
+        "7"
       ]
     },
     {