fix: wait syntax

Author: satra

nipype/pipeline/plugins/multiproc.py

@@ -151,7 +151,7 @@ def __init__(self, plugin_args=None):
             # Python < 3.7 does not support initialization or contexts
             self.pool = ProcessPoolExecutor(max_workers=self.processors)
             result_future = self.pool.submit(process_initializer, self._cwd)
-            wait(result_future, timeout=5)
+            wait([result_future], timeout=5)
 
         self._stats = None