comment pp_foo aliases in pp*.c

Where pp_foo() also handles OP_BAR, add a comment above the function
mentioning that it also does pp_bar.

This means that "grep pp_bar pp*.c" quickly locates the file/function that
handles OP_BAR.

1 files changed, 3 insertions, 0 deletions

diff --git a/doop.c b/doop.c
index 6a136d9108..3b6f1e752a 100644
--- a/doop.c
+++ b/doop.c
@@ -1215,6 +1215,9 @@ finish:
     SvTAINT(sv);
 }
 
+
+/* used for: pp_keys(), pp_values() */
+
 OP *
 Perl_do_kv(pTHX)
 {