Text.hs: update field lists in parseData comments

The comments in parseData had become out of date with the implementations
of load{Group,Node,Inst}. This commit updates the field list in comments to
match the implementations.

Signed-off-by: Dato Simó <dato@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

htools/Ganeti/HTools/Text.hs

@@ -319,11 +319,13 @@ parseData fdata = do
         [a, b, c, d] -> Ok (a, b, c, d, [])
         xs -> Bad $ printf "Invalid format of the input file: %d sections\
                            \ instead of 4 or 5" (length xs)
-  {- group file: name uuid -}
+  {- group file: name uuid alloc_policy -}
   (ktg, gl) <- loadTabular glines loadGroup
-  {- node file: name t_mem n_mem f_mem t_disk f_disk -}
+  {- node file: name t_mem n_mem f_mem t_disk f_disk t_cpu offline grp_uuid
+                spindles -}
   (ktn, nl) <- loadTabular nlines (loadNode ktg)
-  {- instance file: name mem disk status pnode snode -}
+  {- instance file: name mem disk vcpus status auto_bal pnode snode
+                    disk_template tags spindle_use -}
   (_, il) <- loadTabular ilines (loadInst ktn)
   {- the tags are simply line-based, no processing needed -}
   {- process policies -}