[Assigned] backport r45308 (Check fptr before trying to dump FILE object fd)

Ruby Development
1

Issue #9621 has been reported by Tomoyuki C…

Backport #9621: backport r45308 (Check fptr before trying to dump FILE
object fd)

  • Author: Tomoyuki C.
  • Status: Assigned
  • Priority: Normal
  • Assignee: Yui NARUSE