chore: make comment consistent in tH5T_F03.F90 (#6128)

There is 1 `Creates`. The rest (=87) are `Create`.
Change `Creates` to `Create`.

Author: hyoklee

fortran/test/tH5T_F03.F90

@@ -2876,7 +2876,7 @@ SUBROUTINE setup_buffer(data_in, line_lengths, char_type)
 
   IMPLICIT NONE
 
-  ! Creates a simple "Data_in" consisting of the letters of the alphabet,
+  ! Create a simple "Data_in" consisting of the letters of the alphabet,
   ! one per line, with a control character.
 
   CHARACTER(len=10), DIMENSION(:) :: data_in