[svn-r12419] Purpose: Maintenance/new feature

Description: Added new tests for the h5stat tool; added --version flag
             to display library version information and updated expected
             output files.

Solution:

Platforms tested: heping, shanti

Misc. update:

tools/misc/testfiles/h5stat_help2.ddl

@@ -12,6 +12,7 @@ Usage: h5stat [OPTIONS] file
 
       OPTIONS
      -h, --help            Print a usage message and exit
+     -V, --version         Print version number and exit
      -f, --file            Print file information
      -F, --filemetadata    Print file metadata
      -g, --group           Print group information