Fix compiler warning:

pp.c: In function `Perl_pp_delete':
pp.c:4297: warning: 'sv' might be used uninitialized in this function

1 files changed, 1 insertions, 1 deletions

diff --git a/pp.c b/pp.c
index 4b6d11faca..7641b54edf 100644
--- a/pp.c
+++ b/pp.c
@@ -4294,7 +4294,7 @@ PP(pp_delete)
     else {
 	SV *keysv = POPs;
 	HV * const hv = MUTABLE_HV(POPs);
-	SV *sv;
+	SV *sv = NULL;
 	if (SvTYPE(hv) == SVt_PVHV)
 	    sv = hv_delete_ent(hv, keysv, discard, 0);
 	else if (SvTYPE(hv) == SVt_PVAV) {