Look for revisions starting from current commit.

Change-Id: I734b1e78a47208c690d07662e0126b17cc414ee6
diff --git a/src/main/java/com/google/gwt/benchmark/git/GitInterface.java b/src/main/java/com/google/gwt/benchmark/git/GitInterface.java
index 10df338..77acbd1 100644
--- a/src/main/java/com/google/gwt/benchmark/git/GitInterface.java
+++ b/src/main/java/com/google/gwt/benchmark/git/GitInterface.java
@@ -132,7 +132,7 @@
     try {
       git = Git.open(repoPath.toFile());
       LogCommand logCommand = git.log();
-      for (RevCommit commit : logCommand.all().call()) {
+      for (RevCommit commit : logCommand.call()) {
         RevisionInfo revInfo =
             maybeGetRevisionInfo(git.getRepository(), commit, prefixes, suffixes);
         if (revInfo == null) {