commit: fix a typo ("form p1" -> "from p1")

Differential Revision: https://phab.mercurial-scm.org/D6375

mercurial/localrepo.py

@@ -2642,7 +2642,7 b' class localrepository(object):'
                                     p1.manifestnode(), p2.manifestnode(),
                                     added, drop, match=self.narrowmatch())
                 else:
-                    self.ui.debug('reusing manifest form p1 (listed files '
+                    self.ui.debug('reusing manifest from p1 (listed files '
                                   'actually unchanged)\n')
                     mn = p1.manifestnode()
             else:

tests/test-graft.t

@@ -755,7 +755,7 b' Transplants of grafts can find a destina'
   committing files:
   b
   warning: can't find ancestor for 'b' copied from 'a'!
-  reusing manifest form p1 (listed files actually unchanged)
+  reusing manifest from p1 (listed files actually unchanged)
   committing changelog
   updating the branch cache
   $ hg log -r 'destination(13)'

tests/test-merge-no-file-change.t

@@ -137,7 +137,7 b' An identical file added at both parents,'
   $ hg ci --debug -m merge
   committing files:
   b
-  reusing manifest form p1 (listed files actually unchanged)
+  reusing manifest from p1 (listed files actually unchanged)
   committing changelog
   updating the branch cache
   committed changeset 3:c8d50407916ef8a5a97cb6e36ca9bc844a6ee13e