[perl #40388] perl_destruct() leaks PL_main_cv

Well yes, it does, kinda; but it's harmless. Add a comment to that effect.

1 files changed, 4 insertions, 0 deletions

diff --git a/perl.c b/perl.c
index 860cdfcd2a..79e87a5b64 100644
--- a/perl.c
+++ b/perl.c
@@ -751,6 +751,10 @@ perl_destruct(pTHXx)
 	PL_main_root = NULL;
     }
     PL_main_start = NULL;
+    /* note that  PL_main_cv isn't usually actually freed at this point,
+     * due to the CvOUTSIDE refs from subs compiled within it. It will
+     * get freed once all the subs are freed in sv_clean_all(), for
+     * destruct_level > 0 */
     SvREFCNT_dec(PL_main_cv);
     PL_main_cv = NULL;
     PL_dirty = TRUE;