[coq] Untabify the whole ML codebase.

We also remove trailing whitespace.

Script used:

```bash
for i in `find . -name '*.ml' -or -name '*.mli' -or -name '*.mlg'`; do expand -i "$i" | sponge "$i"; sed -e's/[[:space:]]*$//' -i.bak "$i"; done
```

1 files changed, 4 insertions, 4 deletions

diff --git a/kernel/csymtable.ml b/kernel/csymtable.ml
index cbffdc731e..978c2c9f57 100644
--- a/kernel/csymtable.ml
+++ b/kernel/csymtable.ml
@@ -135,12 +135,12 @@ let rec slot_for_getglobal env kn =
       match cb.const_body_code with
       | None -> set_global (val_of_constant kn)
       | Some code ->
-	 match Cemitcodes.force code with
-	 | BCdefined(code,pl,fv) ->
+         match Cemitcodes.force code with
+         | BCdefined(code,pl,fv) ->
            let v = eval_to_patch env (code,pl,fv) in
            set_global v
-	 | BCalias kn' -> slot_for_getglobal env kn'
-	 | BCconstant -> set_global (val_of_constant kn)
+         | BCalias kn' -> slot_for_getglobal env kn'
+         | BCconstant -> set_global (val_of_constant kn)
     in
 (*Pp.msgnl(str"value stored at: "++int pos);*)
     rk := Some (CEphemeron.create pos);