gh-90300: Fix undocumented envvars in the Python CLI help (GH-116765)
diff --git a/Python/initconfig.c b/Python/initconfig.c
index f365bee..bbd611f 100644
--- a/Python/initconfig.c
+++ b/Python/initconfig.c
@@ -310,15 +310,18 @@ static const char usage_envvars[] =
" interpreter displays tracebacks. (-X no_debug_ranges)\n"
"PYTHONNOUSERSITE: disable user site directory (-s)\n"
"PYTHONOPTIMIZE : enable level 1 optimizations (-O)\n"
+"PYTHONPERFSUPPORT: support the Linux \"perf\" profiler (-X perf)\n"
#ifdef Py_DEBUG
"PYTHON_PRESITE=pkg.mod: import this module before site.py is run (-X presite)\n"
#endif
+"PYTHONPROFILEIMPORTTIME: show how long each import takes (-X importtime)\n"
"PYTHONPYCACHEPREFIX: root directory for bytecode cache (pyc) files\n"
" (-X pycache_prefix)\n"
"PYTHONSAFEPATH : don't prepend a potentially unsafe path to sys.path.\n"
#ifdef Py_STATS
"PYTHONSTATS : turns on statistics gathering (-X pystats)\n"
#endif
+"PYTHONTRACEMALLOC: trace Python memory allocations (-X tracemalloc)\n"
"PYTHONUNBUFFERED: disable stdout/stderr buffering (-u)\n"
"PYTHONUTF8 : if set to 1, enable the UTF-8 mode (-X utf8)\n"
"PYTHONVERBOSE : trace import statements (-v)\n"
