[SCM-248] Use "user.name" system property for ext method if user isn't defined.

git-svn-id: https://svn.apache.org/repos/asf/maven/scm/trunk@480990 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/maven-scm-providers/maven-scm-providers-cvs/maven-scm-provider-cvs-commons/src/main/java/org/apache/maven/scm/provider/cvslib/repository/CvsScmProviderRepository.java b/maven-scm-providers/maven-scm-providers-cvs/maven-scm-provider-cvs-commons/src/main/java/org/apache/maven/scm/provider/cvslib/repository/CvsScmProviderRepository.java
index b4952d5..d334ae9 100644
--- a/maven-scm-providers/maven-scm-providers-cvs/maven-scm-provider-cvs-commons/src/main/java/org/apache/maven/scm/provider/cvslib/repository/CvsScmProviderRepository.java
+++ b/maven-scm-providers/maven-scm-providers-cvs/maven-scm-provider-cvs-commons/src/main/java/org/apache/maven/scm/provider/cvslib/repository/CvsScmProviderRepository.java
@@ -52,6 +52,11 @@
 
         this.transport = transport;
 
+        if ( user == null && AbstractCvsScmProvider.TRANSPORT_EXT.equals( transport ) )
+        {
+            user = System.getProperty("user.name");
+        }
+
         setUser( user );
 
         setPassword( password );