bpo-41525: Make the Python program help ASCII-only (GH-21836)

(cherry picked from commit 58de1dd6a8677bd213802c19204b827cb7134695)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
diff --git a/Python/initconfig.c b/Python/initconfig.c
index 885525b..9349fdd 100644
--- a/Python/initconfig.c
+++ b/Python/initconfig.c
@@ -84,7 +84,7 @@
              cumulative time (including nested imports) and self time (excluding\n\
              nested imports). Note that its output may be broken in multi-threaded\n\
              application. Typical usage is python3 -X importtime -c 'import asyncio'\n\
-         -X dev: enable CPython’s “development mode”, introducing additional runtime\n\
+         -X dev: enable CPython's \"development mode\", introducing additional runtime\n\
              checks which are too expensive to be enabled by default. Effect of the\n\
              developer mode:\n\
                 * Add default warning filter, as -W default\n\