util: use the built-in any() and all() methods if they are available

mercurial/util.py

@@ -1343,6 +1343,9 b' def rundetached(args, condfn):'
         if prevhandler is not None:
             signal.signal(signal.SIGCHLD, prevhandler)
 
+try:
+    any, all = any, all
+except NameError:
 def any(iterable):
     for i in iterable:
         if i: