Acceptance tests: Write logs to junit tempdir

Pass the site path to the daemon so that it is available when the
error log file gets initialized.

Bug: Issue 4677
Change-Id: I0b88290c4b277f56a1277b52a08f04feb6eb56b5
Signed-off-by: Edwin Kempin <ekempin@google.com>

gerrit-pgm/src/main/java/com/google/gerrit/pgm/util/SiteProgram.java

@@ -78,6 +78,10 @@ public abstract class SiteProgram extends AbstractProgram {
   protected SiteProgram() {
   }
 
+  protected SiteProgram(Path sitePath) {
+    this.sitePath = sitePath;
+  }
+
   protected SiteProgram(Path sitePath, final Provider<DataSource> dsProvider) {
     this.sitePath = sitePath;
     this.dsProvider = dsProvider;