[svn-r8912] Purpose:

bug fixes

Description:

the return error code for a  function was not initialized.
in HP-UX  it happened that this variable was initialized to -1
causing the function to return with an error condtion
solution : initialized the variable to 0

the name of the dataset was printed after the differences in verbose mode
and report when differences were found
solution : check first if differences were found and then
print the name of dataset and differences
in verbose mode always print the name first

Solution:

Platforms tested:
linux
aix
solaris

Misc. update:

tools/testfiles/h5diff_50.txt

@@ -1,6 +1,7 @@
 #############################
 Expected output for 'h5diff file4.h5 file4.h5 -v dset0a dset0b'
 #############################
+Dataset:     </dset0a> and </dset0b>
 Warning: Different storage datatype
 </dset0a> has file datatype H5T_STD_I16LE
 </dset0b> has file datatype H5T_STD_I32LE
@@ -13,5 +14,4 @@ position        dset0a          dset0b          difference
 [ 1 1 ]          1               4               3              
 [ 2 0 ]          1               5               4              
 [ 2 1 ]          1               6               5              
-Dataset:     </dset0a> and </dset0b>
 4 differences found