Drop '.' from CErrors.anomaly, insert it in args

As per https://github.com/coq/coq/pull/716#issuecomment-305140839

Partially using
```bash
git grep --name-only 'anomaly\s*\(~label:"[^"]*"\s*\)\?\(Pp.\)\?(\(\(Pp.\)\?str\)\?\s*".*[^\.!]")' | xargs sed s'/\(anomaly\s*\(~label:"[^"]*"\s*\)\?\(Pp.\)\?(\(\(Pp.\)\?str\)\?\s*".*\s*[^\.! ]\)\s*")/\1.")/g' -i
```
and
```bash
git grep --name-only ' !"' | xargs sed s'/ !"/!"/g' -i
```
The rest were manually edited by looking at the results of
```bash
git grep anomaly | grep '\.ml' | grep -v 'anomaly\s*\(~label:"[^"]*"\s*\)\?\(Pp\.\)\?(\(\(Pp.\)\?str\)\?\s*".*\(\.\|!\)")' | grep 'anomaly\($\|[^_]\)' | less
```

1 files changed, 2 insertions, 2 deletions

diff --git a/pretyping/evarsolve.ml b/pretyping/evarsolve.ml
index 98e71c7fd..de5a62726 100644
--- a/pretyping/evarsolve.ml
+++ b/pretyping/evarsolve.ml
@@ -634,7 +634,7 @@ let make_projectable_subst aliases sigma evi args =
                    cstrs)
             | _ ->
                 (rest,Id.Map.add id [a,normalize_alias_opt sigma aliases a,id] all,cstrs))
-        | _ -> anomaly (Pp.str "Instance does not match its signature"))
+        | _ -> anomaly (Pp.str "Instance does not match its signature."))
       sign (Array.rev_to_list args,Id.Map.empty,Constrmap.empty) in
   (full_subst,cstr_subst)
 
@@ -828,7 +828,7 @@ let rec find_projectable_vars with_evars aliases sigma y subst =
             | _ -> subst'
           end
         | [] -> subst'
-        | _ -> anomaly (Pp.str "More than one non var in aliases class of evar instance")
+        | _ -> anomaly (Pp.str "More than one non var in aliases class of evar instance.")
       else
         subst' in
   Id.Map.fold is_projectable subst []