Fixed Checkstyle reported error.

git-svn-id: https://svn.apache.org/repos/asf/maven/enforcer/trunk@1701727 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/enforcer-rules/src/main/java/org/apache/maven/plugins/enforcer/DependencyConvergence.java b/enforcer-rules/src/main/java/org/apache/maven/plugins/enforcer/DependencyConvergence.java
index 374704d..7c21bd6 100644
--- a/enforcer-rules/src/main/java/org/apache/maven/plugins/enforcer/DependencyConvergence.java
+++ b/enforcer-rules/src/main/java/org/apache/maven/plugins/enforcer/DependencyConvergence.java
@@ -129,7 +129,8 @@
             }
             if ( errorMsgs.size() > 0 )
             {
-                throw new EnforcerRuleException( "Failed while enforcing releasability. See above detailed error message." );
+                throw new EnforcerRuleException( "Failed while enforcing releasability. "
+                    + "See above detailed error message." );
             }
         }
         catch ( ComponentLookupException e )