[svn-r7912] Purpose:

code clean, bug fix

Description:
the attributes of the root group were not being compared
removed compiler warnings on IRIX and solaris

Solution:
added a special function to compare the attributes of the root group

Platforms tested:
linux
IRIX 6.5
solaris 2.7

Misc. update:

tools/h5diff/h5diff_main.c

@@ -103,7 +103,6 @@ int main(int argc, const char *argv[])
     case 'v': 
      options.verbose = 1;
      break;
-    break;
     case 'r': 
      options.r = 1;
      break;