Issue 15241: Improved site.py documentation relating to venvs.
diff --git a/Lib/site.py b/Lib/site.py
index a0f98b3..0aaf46b 100644
--- a/Lib/site.py
+++ b/Lib/site.py
@@ -15,8 +15,8 @@
If a file named "pyvenv.cfg" exists one directory above sys.executable,
sys.prefix and sys.exec_prefix are set to that directory and
-it is also checked for site-packages and site-python (sys.prefix and
-sys.exec_prefix will always be the "real" prefixes of the Python
+it is also checked for site-packages and site-python (sys.base_prefix and
+sys.base_exec_prefix will always be the "real" prefixes of the Python
installation). If "pyvenv.cfg" (a bootstrap configuration file) contains
the key "include-system-site-packages" set to anything other than "false"
(case-insensitive), the system-level prefixes will still also be