Make the verbose take the level and return the level if valid.

This makes the verbose a single and removes the need to have the
logic of the test in the code.

1 files changed, 1 insertions, 1 deletions

diff --git a/rld.h b/rld.h
index f86ef34..7bd940b 100644
--- a/rld.h
+++ b/rld.h
@@ -187,7 +187,7 @@ namespace rld
    * Return the verbose level. Setting the flag more than once raises the
    * level.
    */
-  int verbose ();
+  int verbose (int level = 0);
 
   /**
    * The version string.