[PATCH follow-up] statprof: fix save and load

[Boris Feld]

# HG changeset patch
# User Boris Feld <boris.feld at octobus.net>
# Date 1528737841 -7200
#      Mon Jun 11 19:24:01 2018 +0200
# Node ID 4e4c30424be81d5eb3748e4b031b61c7622341b6
# Parent  15a1e37f80bd5af4b8eedd55b0c347c41a974839
# EXP-Topic walltime-followup
# Available At https://bitbucket.org/octobus/mercurial-devel/
#              hg pull https://bitbucket.org/octobus/mercurial-devel/ -r 4e4c30424be8
statprof: fix save and load

Fix these functions even if they don't are used at the moment. Thanks to Yuya
Nishihara for spotting that.

diff --git a/mercurial/statprof.py b/mercurial/statprof.py
--- a/mercurial/statprof.py
+++ b/mercurial/statprof.py
@@ -350,7 +350,7 @@ def stop():
 
 def save_data(path):
     with open(path, 'w+') as file:
-        file.write(str(state.accumulated_time) + '\n')
+        file.write("%f %f\n" % state.accumulated_time)
         for sample in state.samples:
             time = str(sample.time)
             stack = sample.stack
@@ -361,7 +361,7 @@ def save_data(path):
 def load_data(path):
     lines = open(path, 'r').read().splitlines()
 
-    state.accumulated_time = float(lines[0])
+    state.accumulated_time = [float(value) for value in lines[0].split()]
     state.samples = []
     for line in lines[1:]:
         parts = line.split('\0')