[MGPG-48] useAgent=true by default

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1570543 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/java/org/apache/maven/plugin/gpg/AbstractGpgMojo.java b/src/main/java/org/apache/maven/plugin/gpg/AbstractGpgMojo.java
index 07029e4..7bb04ed 100644
--- a/src/main/java/org/apache/maven/plugin/gpg/AbstractGpgMojo.java
+++ b/src/main/java/org/apache/maven/plugin/gpg/AbstractGpgMojo.java
@@ -62,7 +62,7 @@
      * optional as the agent will provide it.
      * For gpg2, specify true as --no-use-agent was removed in gpg2 and doesn't ask for a passphrase anymore.
      */
-    @Parameter( property = "gpg.useagent", defaultValue = "false")
+    @Parameter( property = "gpg.useagent", defaultValue = "true")
     private boolean useAgent;
 
     /**