Fix modulemd file.

jdk-10.yaml

@@ -1,3 +1,4 @@
+---
 document: modulemd
 version: 2
 data:
@@ -8,7 +9,7 @@ data:
     license:
         module: MIT
     dependencies:
-        buildrequires:
+         - buildrequires:
             platform: [f28]
         requires:
             platform: [f28]
@@ -18,9 +19,9 @@ data:
         default:
             rpms:
                 - java-openjdk-devel
-        development:
+        minimal:
             rpms:
-                - java-openjdk-devel-slowdebug
+                - java-openjdk-headless
         # A set of packages which should be installed into the buildroot of a
         # module which depends on this module.  Specifically, it is used to
         # flesh out the build group in koji.