[elpa] externals-release/org updated (dbc8431 -> 5450d64)

[ELPA Syncer]

elpasync pushed a change to branch externals-release/org.

      from  dbc8431   ob-smiles.el: Fix reference to free variable
       new  5db61eb   org.el: Avoid xdg-open silent failure
       new  5450d64   ob-export: Give more informative error on unknown call 
reference


Summary of changes:
 lisp/ob-exp.el              |  7 +++++--
 lisp/org.el                 | 16 +++++++++++++++-
 testing/lisp/test-ob-exp.el |  8 ++++++++
 3 files changed, 28 insertions(+), 3 deletions(-)