Fix RecreateSKPs bot (again)

It's killing its own process...

BUG=skia:3008
TBR=rmistry
NOTRY=true

Review URL: https://codereview.chromium.org/661203002
diff --git a/tools/skp/recreate_skps.py b/tools/skp/recreate_skps.py
index 7886318..bbec14a 100644
--- a/tools/skp/recreate_skps.py
+++ b/tools/skp/recreate_skps.py
@@ -72,7 +72,7 @@
     for line in procs.splitlines():
       if browser_executable in line:
         pid = line.strip().split(' ')[0]
-        if pid != str(os.getpid()):
+        if pid != str(os.getpid()) and not 'python' in line:
           try:
             shell_utils.run(['kill', '-9', pid])
           except shell_utils.CommandFailedException as e: