Fix building with C++14, which errors out due to changing operator void* -> operator bool.
See also: https://bugs.gentoo.org/show_bug.cgi?id=594060

--- a/hmmodel.cpp
+++ b/hmmodel.cpp
@@ -1499,7 +1499,7 @@
     }
     else
     {
-        cout<<"HMModel::alignmentModel: impossible 'as'"<<cout;
+        cout<<"HMModel::alignmentModel: impossible 'as'";
         exit(-1);
     }