absorb: improve message for the case when changeset became empty

In changeset f55099982bc5, I introduced the message "became empty and became
...", which I was never very happy with. Raphaël Gomès suggested "became empty
as ...". That sounds much nicer.

Differential Revision: https://phab.mercurial-scm.org/D8765

hgext/absorb.py

@@ -798,10 +798,7 b' class fixupstate(object):'
                 self.replacemap[ctx.node()] = lastcommitted.node()
                 if memworkingcopy:
                     if willbecomenoop:
-                        msg = _(
-                            b'%d file(s) changed, became empty '
-                            b'and became %s'
-                        )
+                        msg = _(b'%d file(s) changed, became empty as %s')
                     else:
                         msg = _(b'%d file(s) changed, became %s')
                     msg = msg % (

tests/test-absorb.t

@@ -530,8 +530,8 b' Setting config rewrite.empty-successor=k'
   $ hg absorb -av --config rewrite.empty-successor=keep | grep became
   0:bfafb49242db: 1 file(s) changed, became 5:1a2de97fc652
   1:115485984805: 2 file(s) changed, became 6:0c930dfab74c
-  2:30970dbf7b40: 2 file(s) changed, became empty and became 7:df6574ae635c
-  3:a393a58b9a85: 2 file(s) changed, became empty and became 8:ad4bd3462c9e
+  2:30970dbf7b40: 2 file(s) changed, became empty as 7:df6574ae635c
+  3:a393a58b9a85: 2 file(s) changed, became empty as 8:ad4bd3462c9e
   4:1bb0e8cff87a: 2 file(s) changed, became 9:2dbed75af996
   $ hg log -T '{rev} {desc}\n' -Gp
   @  9 empty