KARAF-7795 Fix handling of custom info providers in shell:info command.

Signed-off-by: Łukasz Dywicki <luke@code-house.org>
diff --git a/shell/commands/src/main/java/org/apache/karaf/shell/commands/impl/InfoAction.java b/shell/commands/src/main/java/org/apache/karaf/shell/commands/impl/InfoAction.java
index 22dea86..040edb0 100644
--- a/shell/commands/src/main/java/org/apache/karaf/shell/commands/impl/InfoAction.java
+++ b/shell/commands/src/main/java/org/apache/karaf/shell/commands/impl/InfoAction.java
@@ -40,6 +40,7 @@
 import java.util.Properties;
 import java.util.concurrent.Callable;
 
+import org.apache.karaf.shell.api.action.lifecycle.Reference;
 import org.apache.karaf.shell.commands.info.InfoProvider;
 import org.apache.karaf.shell.api.action.Action;
 import org.apache.karaf.shell.api.action.Command;
@@ -63,7 +64,7 @@
     @Option(name="--memory-pools", aliases= {"-mp"}, description="Includes detailed information about memory pools")
     protected boolean showMemoryPools;
 
-//    @Reference
+    @Reference
     List<InfoProvider> infoProviders;
 
     public InfoAction() {