PullRequestLinuxDriver.sh: change from fetching all branches to just …
Created by: prwolfe
…those we will work against
We are hoping this will reduce the communication time and bandwidth for testing. Not sure that will solve all the RCP and ssh errors, but it can't hurt.
Description
This just changes to fetch only the source and target branches instead of the entire repositories. This got fairly large on some of the forks.
How Has This Been Tested?
To avoid the bootstrapping issue with testing driver scripts I set up an autotester instance that looks at PR's into this branch on my fork. I gave that a whitespace change and observed all three resulting builds. The fetch did only the one branch in each case and did not have any errors.