tree 074eebecc0d4098fd82789092d876d72ef2d1cee
parent 800f06df98660bb215f17725ae8a1bfa96bfb91a
author Patrick Venture <venture@google.com> 1557949062 -0700
committer Patrick Venture <venture@google.com> 1557949062 -0700

blob_handler: make commit data parameter optional

Make the commit data parameter optional by defaulting it to an empty
vector.  This is less code than using std::optional for this.

Change-Id: Icd953e63fc68a658b29fff5a132e264f1aee5bbc
Signed-off-by: Patrick Venture <venture@google.com>