Bug 1746770 - "mach vendor rust" fails when crate has the directory name that uses space character. r=firefox-build-system-reviewers,mhentges

Differential Revision: https://phabricator.services.mozilla.com/D134241

python/mozversioncontrol/mozversioncontrol/__init__.py

@@ -488,7 +488,7 @@ class HgRepository(Repository):
         if _paths_equal(self.path, path):
             raise CannotDeleteFromRootOfRepositoryException()
         self._run("revert", path)
-        for f in self._run("st", "-un", path).split():
+        for f in self._run("st", "-un", path).splitlines():
             if os.path.isfile(f):
                 os.remove(f)
             else: