cleanup: use any() instead of checking truthiness of temporary list

It was not immediately obvious to me, when first seeing this, why a list was
created. It needed a second look to understand that the purpose was to check
whether the condition is true for any of the parents. Using any() for that is
clearer.

mercurial/cmdutil.py

@@ -3437,9 +3437,9 b' def commitstatus(repo, node, branch, bhe'
         not opts.get(b'amend')
         and bheads
         and node not in bheads
-        and not [
-            x for x in parents if x.node() in bheads and x.branch() == branch
-        ]
+        and not any(
+            x.node() in bheads and x.branch() == branch for x in parents
+        )
     ):
         repo.ui.status(_(b'created new head\n'))
         # The message is not printed for initial roots. For the other