[svn-r18427] Purpose:

Fix for bug1814 - NPOESS: h5repack doesn't handle references to the groups 
    as an element of a dataset 

Description:
    Merged from hdf5 trunk r18425
    handles object reference to named-datatype as well.
    Add test cases.

Tested:
    jam

tools/lib/h5diff_array.c

@@ -747,7 +747,8 @@ hsize_t diff_datum(void       *_mem1,
                     NULL,
                     options);
                 else {
-                    parallel_print("Warning: Comparison not possible of object types referenced: <%s> and <%s>",
+                    if(options->m_verbose)
+                        parallel_print("Warning: Comparison not possible of object types referenced: <%s> and <%s>\n",
                         obj1, obj2);
                     options->not_cmp = 1;
                 }