Fix a logic bug in a check for matching files.
Fix a logic bug in a check for matching files.

Change-Id: I04d24ecddb78c9d302ecf58320aa3eb40fe507fb

jgennis/blueprint,Tiger66639/blueprint,jgennis/blueprint,google/blueprint,Tiger66639/blueprint,yuhangwang/blueprint,danw/blueprint,google/blueprint,danw/blueprint,colincross/blueprint,colincross/blueprint,yuhangwang/blueprint