merge revision(s) 57315:
vm_dump.c: postscript_dump * vm_dump.c (postscript_dump): mention crash report log twice because important.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57857 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 57315:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57857 b2dd03c8-39d4-4d8f-98ff-823fe69b080e