gpgconf: Fix a diagnostic output.

* tools/gpgconf-comp.c (gc_component_launch): Fix diagnostic.
* doc/examples/common.conf: Fix example.

Signed-off-by: Werner Koch <wk@gnupg.org>

doc/examples/common.conf

@@ -19,4 +19,4 @@
 # standard logging socket (socket://) or a tcp server (tcp://ip:port).
 # If a file name is given the name of the component is internally
 # appended.
-#socket://
+#log-file socket://

tools/gpgconf-comp.c

@@ -948,7 +948,10 @@ gc_component_launch (int component)
                  gc_component[component].name);
       if (!opt.quiet)
         log_info (_("Note: Use the command \"%s%s\" to get details.\n"),
-                  gc_component[component].name, " --gpgconf-test");
+                  gc_component[component].program
+                  ? gc_component[component].program
+                  : gc_component[component].name,
+                  " --gpgconf-test");
       gpgconf_failure (0);
     }