commit b18f60db60487ada38d5f04f52981628b28c6835
Author: William Cohen <wcohen@redhat.com>
Date:   Wed Feb 9 15:27:47 2011 -0500

    Do not use mutable for reference variable.

diff --git a/libpp/format_output.h b/libpp/format_output.h
index b6c4592..8e527d5 100644
--- a/libpp/format_output.h
+++ b/libpp/format_output.h
@@ -91,7 +91,7 @@ protected:
 		symbol_entry const & symbol;
 		sample_entry const & sample;
 		size_t pclass;
-		mutable counts_t & counts;
+		counts_t & counts;
 		extra_images const & extra;
 		double diff;
 	};