Add toString for debug purposes

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@995903 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/sigil/common/core/src/org/apache/felix/sigil/common/core/internal/model/eclipse/BundleCapability.java b/sigil/common/core/src/org/apache/felix/sigil/common/core/internal/model/eclipse/BundleCapability.java
index a97d1d2..6799420 100644
--- a/sigil/common/core/src/org/apache/felix/sigil/common/core/internal/model/eclipse/BundleCapability.java
+++ b/sigil/common/core/src/org/apache/felix/sigil/common/core/internal/model/eclipse/BundleCapability.java
@@ -84,4 +84,9 @@
 
         return hc;
     }
+    
+    @Override
+    public String toString() {
+        return "BundleCapability[" + bsn + ":version=" + version + "]";
+    }
 }