morestatus: improve the update clean message

Summary:
The `.` in the previous update-clean message is easy to overlook.

Before:

```
# To abort: sl goto --clean . (warning: this will discard uncommitted changes)
```

After:
```
# To abort: sl goto . --clean (warning: this will discard uncommitted changes)
```

Differential Revision: D83192333

fbshipit-source-id: 708347e4bb4e2d7019268fe8a89bd51ff8f175c5

Author: zzl0

eden/scm/sapling/ext/morestatus.py

@@ -101,7 +101,7 @@ def rebasemsg(repo, ui):
 
 def updatecleanmsg(dest=None):
     warning = _("warning: this will discard uncommitted changes")
-    return _("@prog@ goto --clean %s    (%s)") % (dest or ".", warning)
+    return _("@prog@ goto %s --clean    (%s)") % (dest or ".", warning)
 
 
 def updatemsg(repo, ui):

eden/scm/tests/test-conflict.t

@@ -66,7 +66,7 @@
   # 
   # To mark files as resolved:  hg resolve --mark FILE
   # To continue:                hg commit
-  # To abort:                   hg goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto . --clean    (warning: this will discard uncommitted changes)
 
   $ cat a
   Small Mathematical Series.

eden/scm/tests/test-dotgit-goto.t

@@ -55,7 +55,7 @@ tofix: should have a way to get out of the unfinished *update* state
 
   # The repository is in an unfinished *update* state.
   # To continue:                sl go 'desc(B)'
-  # To abort:                   sl goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   sl goto . --clean    (warning: this will discard uncommitted changes)
   $ sl shelve
   abort: interrupted goto
   (use 'sl goto --continue' to continue or

eden/scm/tests/test-morestatus.t

@@ -214,7 +214,7 @@ Test conflicted merge state
   # 
   # To mark files as resolved:  hg resolve --mark FILE
   # To continue:                hg commit
-  # To abort:                   hg goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto . --clean    (warning: this will discard uncommitted changes)
 
 
 Test if listed files have a relative path to current location
@@ -231,7 +231,7 @@ Test if listed files have a relative path to current location
   # 
   # To mark files as resolved:  hg resolve --mark FILE
   # To continue:                hg commit
-  # To abort:                   hg goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto . --clean    (warning: this will discard uncommitted changes)
 
   $ cd ../..
 
@@ -252,7 +252,7 @@ Test non-conflicted merge state
 
   # The repository is in an unfinished *merge* state.
   # To continue:                hg commit
-  # To abort:                   hg goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto . --clean    (warning: this will discard uncommitted changes)
 
 
 Test hg status is normal after merge commit (no output)
@@ -266,7 +266,7 @@ Test interrupted update state, without active bookmark and REV is a hash
 
   # The repository is in an unfinished *update* state.
   # To continue:                hg goto -C 2977a57ce863
-  # To abort:                   hg goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto . --clean    (warning: this will discard uncommitted changes)
 
 
 Test interrupted update state, with active bookmark and REV is a bookmark
@@ -277,7 +277,7 @@ Test interrupted update state, with active bookmark and REV is a bookmark
 
   # The repository is in an unfinished *update* state.
   # To continue:                hg goto b2
-  # To abort:                   hg goto --clean b1    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto b1 --clean    (warning: this will discard uncommitted changes)
 
 
 Test update state can be reset using bookmark
@@ -293,7 +293,7 @@ Test interrupted update state, without active bookmark and REV is specified usin
 
   # The repository is in an unfinished *update* state.
   # To continue:                hg goto --date 1970-1-1 -q
-  # To abort:                   hg goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto . --clean    (warning: this will discard uncommitted changes)
 
 
   $ unbreakupdate
@@ -310,7 +310,7 @@ Test args escaping in continue command
 
   # The repository is in an unfinished *update* state.
   # To continue:                hg --config 'extensions.fsmonitor=!' --config 'ui.ssh=ssh -oControlMaster=no' update -C 2977a57ce863
-  # To abort:                   hg goto --clean b1    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto b1 --clean    (warning: this will discard uncommitted changes)
 
 
   $ unbreakupdate

eden/scm/tests/test-update-merge-state.t

@@ -62,7 +62,7 @@ Python utility:
   # 
   # To mark files as resolved:  hg resolve --mark FILE
   # To continue:                hg goto --continue
-  # To abort:                   hg goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto . --clean    (warning: this will discard uncommitted changes)
 
 # Cannot --continue right now
 
@@ -83,7 +83,7 @@ Python utility:
   # The repository is in an unfinished *update* state.
   # No unresolved merge conflicts.
   # To continue:                hg goto --continue
-  # To abort:                   hg goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto . --clean    (warning: this will discard uncommitted changes)
 
 # To get rid of the state
 
@@ -135,7 +135,7 @@ Python utility:
   # The repository is in an unfinished *merge* state.
   # No unresolved merge conflicts.
   # To continue:                hg continue, then hg commit
-  # To abort:                   hg goto --clean .    (warning: this will discard uncommitted changes)
+  # To abort:                   hg goto . --clean    (warning: this will discard uncommitted changes)
 
 # The state is confusing, but 'hg continue' can resolve it.