[elpa] externals/dash updated (0e97578 -> 0b9cdba)

[ELPA Syncer]

elpasync pushed a change to branch externals/dash.

      from  0e97578   Release dash 2.18.0 and dash-functional 1.3.0
       new  3deba09   Fix off-by-one regression in --iterate
       new  0b9cdba   Speed up -flatten-n a bit


Summary of changes:
 dash.el         | 19 ++++++++++++-------
 dev/examples.el | 12 ++++++++++--
 2 files changed, 22 insertions(+), 9 deletions(-)