libnbc: __FUNCTION__ -> __func__ fixes

(cherry picked from commit a0ebbee)

Author: jsquyres

ompi/mca/coll/libnbc/libdict/dict_private.h

@@ -47,7 +47,7 @@ typedef int			 (*icompare_func)	__P((void *, void *itor2));
 #  define ASSERT(expr)														\
 	if (!(expr))															\
 		fprintf(stderr, "\n%s:%d (%s) assertion failed: `%s'\n",			\
-				__FILE__, __LINE__, __PRETTY_FUNCTION__, #expr),			\
+				__FILE__, __LINE__, __func__, #expr),			\
 		abort()
 # else
 #  define ASSERT(expr)														\