Add missing whitespace in `is_running_main` comment (#133174)

diff --git a/Modules/_interpretersmodule.c b/Modules/_interpretersmodule.c
index b22bd29a507f6b1bf5e2bf48590f968cd4948bed..77678f7c1260053e7bf5dcf6866f45208ac69261 100644 (file)
--- a/Modules/_interpretersmodule.c
+++ b/Modules/_interpretersmodule.c
@@ -63,7 +63,7 @@ is_running_main(PyInterpreterState *interp)
     // using this module for the main interpreter is doing so through
     // the main program.  Thus we can make this extra check.  This benefits
     // applications that embed Python but haven't been updated yet
-    // to call_PyInterpreterState_SetRunningMain().
+    // to call _PyInterpreterState_SetRunningMain().
     if (_Py_IsMainInterpreter(interp)) {
         return 1;
     }