asyncio: Fix error message in BaseEventLoop.subprocess_shell(). Patch written
by Vajrasky Kok.
diff --git a/Lib/asyncio/base_events.py b/Lib/asyncio/base_events.py
index 05a4c38..168e9cb 100644
--- a/Lib/asyncio/base_events.py
+++ b/Lib/asyncio/base_events.py
@@ -557,7 +557,7 @@
if universal_newlines:
raise ValueError("universal_newlines must be False")
if not shell:
- raise ValueError("shell must be False")
+ raise ValueError("shell must be True")
if bufsize != 0:
raise ValueError("bufsize must be 0")
protocol = protocol_factory()