#############################
Expected output for 'h5dump tgroup.h5'
#############################
HDF5 "tgroup.h5" {
GROUP "/" {
   GROUP "g1" {
      GROUP "g1.1" {
      } 
      GROUP "g1.2" {
      } 
   } 
   GROUP "g2" {
      GROUP "g2.1" {
         GROUP "g2.1.1" {
         } 
         GROUP "g2.1.2" {
         } 
         GROUP "g2.1.3" {
         } 
      } 
   } 
   GROUP "g3" {
      GROUP "g3.1" {
      } 
      GROUP "g3.2" {
      } 
      GROUP "g3.3" {
      } 
      GROUP "g3.4" {
      } 
   } 
} 
}