Remove mutable declaration of reference member
Mutable on reference members is meaningless. gcc>=4.6 does not allow
it.
Change-Id: I87c10cd7b5d6a15f46ca20465882e7a940e850bf
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 @@
symbol_entry const & symbol;
sample_entry const & sample;
size_t pclass;
- mutable counts_t & counts;
+ counts_t & counts;
extra_images const & extra;
double diff;
};