Micro-optimization: replace s.find(x)!=-1 with x in s

timeit shows a speedup of ~3x on Python 2.7.5 x86_64.
It also makes the code a bit shorter.

lib/ansible/runner/action_plugins/async.py

@@ -33,7 +33,7 @@ class ActionModule(object):
             module_name = 'command'
             module_args += " #USE_SHELL"
 
-        if tmp.find("tmp") == -1:
+        if "tmp" not in tmp:
             tmp = self.runner._make_tmp_path(conn)
 
         (module_path, is_new_style, shebang) = self.runner._copy_module(conn, tmp, module_name, module_args, inject, complex_args=complex_args)

lib/ansible/runner/action_plugins/copy.py

@@ -331,7 +331,7 @@ class ActionModule(object):
         src = open(source)
         src_contents = src.read(8192)
         st = os.stat(source)
-        if src_contents.find("\x00") != -1:
+        if "\x00" in src_contents:
             diff['src_binary'] = 1
         elif st[stat.ST_SIZE] > utils.MAX_FILE_SIZE_FOR_DIFF:
             diff['src_larger'] = utils.MAX_FILE_SIZE_FOR_DIFF

lib/ansible/runner/action_plugins/script.py

@@ -128,7 +128,7 @@ class ActionModule(object):
         result = handler.run(conn, tmp, 'raw', module_args, inject)
 
         # clean up after
-        if tmp.find("tmp") != -1 and not C.DEFAULT_KEEP_REMOTE_FILES:
+        if "tmp" in tmp and not C.DEFAULT_KEEP_REMOTE_FILES:
             self.runner._low_level_exec_command(conn, 'rm -rf %s >/dev/null 2>&1' % tmp, tmp)
 
         result.result['changed'] = True