fixes nodegit#852 fixed tab issue PR nodegit#927

Author: josh-shaw-dev

lib/repository.js

@@ -535,9 +535,9 @@ Repository.prototype.createCommitOnHead = function(
     .then(function(treeOid) {
       return repo.getHeadCommit()
         .then(function(parent) {
-            if (parent !== null) { // To handle a fresh repo with no commits
-             parent = [parent];
-            }
+          if (parent !== null) { // To handle a fresh repo with no commits
+            parent = [parent];
+          }
           return repo.createCommit(
             "HEAD",
             author,