fix coredump in S_varname (tickled by Devel::Profile)

a 'Use of uninitialized value' warning within a DB sub
attempted to use the pad of the caller to locate the offending
lexical

p4raw-id: //depot/perl@31278

1 files changed, 1 insertions, 2 deletions

diff --git a/sv.c b/sv.c
index 0cd9ca84e8..c2c7f4d97e 100644
--- a/sv.c
+++ b/sv.c
@@ -11778,8 +11778,7 @@ S_varname(pTHX_ GV *gv, const char gvtype, PADOFFSET targ,
 	}
     }
     else {
-	U32 unused;
-	CV * const cv = find_runcv(&unused);
+	CV * const cv = find_runcv(NULL);
 	SV *sv;
 	AV *av;