Switch from psutil.phymem_usage() to psutil.virtual_memory()

The former was deprecated in version 0.6.0 and removed after jessie:

https://github.com/giampaolo/psutil/blob/master/HISTORY.rst

diff --git a/modules/buildd/files/buildd-schroot-aptitude-kill b/modules/buildd/files/buildd-schroot-aptitude-kill
index fa73746..c7bc36a 100755 (executable)
--- a/modules/buildd/files/buildd-schroot-aptitude-kill
+++ b/modules/buildd/files/buildd-schroot-aptitude-kill
@@ -34,7 +34,7 @@ except OSError, e:
        if e.errno == errno.ENOENT:
                sys.exit(0)
 
-total_mem = psutil.phymem_usage().total
+total_mem = psutil.virtual_memory().total
 cutoff_time = 60*10
 
 for p in psutil.process_iter():