Fix another corner case of too many warnings for world readable current working directory

There should be no warning if there is no ansible.cfg file i nthe
current working directory.

lib/ansible/config/manager.py

@@ -176,10 +176,14 @@ def find_ini_config_file(warnings=None):
     try:
         cwd = os.getcwd()
         perms = os.stat(cwd)
+        cwd_cfg = os.path.join(cwd, "ansible.cfg")
         if perms.st_mode & stat.S_IWOTH:
-            warn_cmd_public = True
+            # Working directory is world writable so we'll skip it.
+            # Still have to look for a file here, though, so that we know if we have to warn
+            if os.path.exists(cwd_cfg):
+                warn_cmd_public = True
         else:
-            potential_paths.append(os.path.join(cwd, "ansible.cfg"))
+            potential_paths.append(cwd_cfg)
     except OSError:
         # If we can't access cwd, we'll simply skip it as a possible config source
         pass