minor: missing blank in logging message

Change-Id: I7221acd0c1523f926ff8e88a667f194eecb47791
Signed-off-by: Michael Keppler <Michael.Keppler@gmx.de>
diff --git a/bundles/org.eclipse.e4.core.contexts/src/org/eclipse/e4/core/internal/contexts/ValueComputation.java b/bundles/org.eclipse.e4.core.contexts/src/org/eclipse/e4/core/internal/contexts/ValueComputation.java
index 1c04bba..0452797 100644
--- a/bundles/org.eclipse.e4.core.contexts/src/org/eclipse/e4/core/internal/contexts/ValueComputation.java
+++ b/bundles/org.eclipse.e4.core.contexts/src/org/eclipse/e4/core/internal/contexts/ValueComputation.java
@@ -54,7 +54,7 @@
 		if (cachedValue != NotAValue)
 			return cachedValue;
 		if (this.computing)
-			throw new RuntimeException("Cycle while computing value" + this.toString()); //$NON-NLS-1$
+			throw new RuntimeException("Cycle while computing value " + this.toString()); //$NON-NLS-1$
 
 		originatingContext.pushComputation(this);
 		computing = true;