Simplify logic in GitDownloadCommand

Use fewer else conditions and rely on a single fall through return
null if it is not suitable to produce a command.

Change-Id: I70330af6bbab12d2be4ebe14cb4274d4af3bea01
1 file changed
tree: 52aea5c21c9c1bec028c1af6ba85a2331cfc7de8
  1. src/
  2. BUCK
  3. LICENSE