sprintf.c: infect

* sprintf.c (ruby__sfvextra): the result should be infected by the
  given strings.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36707 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/sprintf.c b/sprintf.c
index 3642e2153a..7a4f1e5794 100644
--- a/sprintf.c
+++ b/sprintf.c
@@ -1210,6 +1210,7 @@ ruby__sfvextra(rb_printf_buffer *fp, size_t valsize, void *valp, long *sz, int s
     StringValueCStr(value);
     RSTRING_GETMEM(value, cp, *sz);
     ((rb_printf_buffer_extra *)fp)->value = value;
+    OBJ_INFECT(result, value);
     return cp;
 }