Update "Optimizing app X from Y string"

The word "Optimizing" is rendering on two lines on Lenok due to being too
long.  New design is to shorten the string on watches to avoid this issue.

BUG: 18388692
BUG: 18902013
BUG: 16493311
Change-Id: I8d9a9e8fcade460e50f9bf71d5cb0c6e415f871e