[svn-r19401] Purpose:

Fix for Bug1975 h5diff - support recursive comparison on group when specified as an object

Description:
 Merged from hdf5 trunk (r19400).
 Compare member objects and groups recursively when two files or groups are specified to be compared. Support parallel diff and handling symbolic links accordingly.

Tested:
 jam, amani

tools/lib/ph5diff.h

@@ -38,7 +38,8 @@ H5TOOLS_DLLVAR FILE *	overflow_file;
 
 struct diff_args
 {
-    char	name[256];
+    char	name1[256];
+    char	name2[256];
     h5trav_type_t   type;
     diff_opt_t	options;
 };