Change some =head1 to apidoc_section lines

apidoc_section is slightly favored over head1, as it is known only to
autodoc, and can't be confused with real pod.

1 files changed, 1 insertions, 1 deletions

diff --git a/perl.c b/perl.c
index 728ab57984..f32686b982 100644
--- a/perl.c
+++ b/perl.c
@@ -2877,7 +2877,7 @@ Perl_get_cv(pTHX_ const char *name, I32 flags)
 
 /*
 
-=head1 Callback Functions
+=for apidoc_section Callback Functions
 
 =for apidoc call_argv