#############################
Expected output for 'h5dump -a /attr1 --attribute /attr4 --attribute=/attr5 tattr.h5'
#############################
HDF5 "tattr.h5" {
ATTRIBUTE "/attr1" {
   DATATYPE  H5T_STD_I8BE
   DATASPACE  SIMPLE { ( 24 ) / ( 24 ) }
   DATA {
   (0): 97, 116, 116, 114, 105, 98, 117, 116, 101, 32, 111, 102, 32, 114,
   (14): 111, 111, 116, 32, 103, 114, 111, 117, 112, 0
   }
}
ATTRIBUTE "/attr4" {
   DATATYPE  H5T_STD_I32BE
   DATASPACE  SCALAR
   DATA {
   (0): 100
   }
}
ATTRIBUTE "/attr5" {
   DATATYPE  H5T_STRING {
         STRSIZE 17;
         STRPAD H5T_STR_NULLTERM;
         CSET H5T_CSET_ASCII;
         CTYPE H5T_C_S1;
      }
   DATASPACE  SCALAR
   DATA {
   (0): "string attribute"
   }
}
}