trivial log addition

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@796520 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/sigil/ivy/resolver/src/org/apache/felix/sigil/ivy/SigilParser.java b/sigil/ivy/resolver/src/org/apache/felix/sigil/ivy/SigilParser.java
index 99e7ac9..ff820d5 100644
--- a/sigil/ivy/resolver/src/org/apache/felix/sigil/ivy/SigilParser.java
+++ b/sigil/ivy/resolver/src/org/apache/felix/sigil/ivy/SigilParser.java
@@ -533,6 +533,7 @@
                 if ( name == null )
                 {
                     // e.g. SystemProvider with framework=null
+                    Log.verbose( "Discarding system bundle" );
                     continue;
                 }
 
@@ -705,4 +706,4 @@
     {
         super( md, mrid, force, changing, transitive );
     }
-}
+}
\ No newline at end of file