Use next(iterator) rather than iterator.next()

iterator.next() was replaced with iterator.__next__() in Python 3.
Use next(iterator) instead which will select the correct method for
returning the next item.

Change-Id: I6d0c89c8b32e817e5897fe87332933dacf22027b
diff --git a/project.py b/project.py
index 127176e..897f4c9 100644
--- a/project.py
+++ b/project.py
@@ -2321,8 +2321,8 @@
           out = iter(out[:-1].split('\0'))  # pylint: disable=W1401
           while out:
             try:
-              info = out.next()
-              path = out.next()
+              info = next(out)
+              path = next(out)
             except StopIteration:
               break
 
@@ -2348,7 +2348,7 @@
             info = _Info(path, *info)
             if info.status in ('R', 'C'):
               info.src_path = info.path
-              info.path = out.next()
+              info.path = next(out)
             r[info.path] = info
         return r
       finally:
diff --git a/subcmds/status.py b/subcmds/status.py
index 41c4429..b42675e 100644
--- a/subcmds/status.py
+++ b/subcmds/status.py
@@ -113,7 +113,7 @@
     try:
       state = project.PrintWorkTreeStatus(output)
       if state == 'CLEAN':
-        clean_counter.next()
+        next(clean_counter)
     finally:
       sem.release()
 
@@ -141,7 +141,7 @@
       for project in all_projects:
         state = project.PrintWorkTreeStatus()
         if state == 'CLEAN':
-          counter.next()
+          next(counter)
     else:
       sem = _threading.Semaphore(opt.jobs)
       threads_and_output = []
@@ -164,7 +164,7 @@
         t.join()
         output.dump(sys.stdout)
         output.close()
-    if len(all_projects) == counter.next():
+    if len(all_projects) == next(counter):
       print('nothing to commit (working directory clean)')
 
     if opt.orphans: