Fixed missing space in exception message.

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1740675 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/maven/plugins/war/packaging/AbstractWarPackagingTask.java b/src/main/java/org/apache/maven/plugins/war/packaging/AbstractWarPackagingTask.java
index 0180f02..31aca58 100644
--- a/src/main/java/org/apache/maven/plugins/war/packaging/AbstractWarPackagingTask.java
+++ b/src/main/java/org/apache/maven/plugins/war/packaging/AbstractWarPackagingTask.java
@@ -308,7 +308,7 @@
         }
         catch ( ArchiverException e )
         {
-            throw new MojoExecutionException( "Error unpacking file [" + file.getAbsolutePath() + "]" + "to ["
+            throw new MojoExecutionException( "Error unpacking file [" + file.getAbsolutePath() + "]" + " to ["
                 + unpackDirectory.getAbsolutePath() + "]", e );
         }
         catch ( NoSuchArchiverException e )