Issue #17047: remove doubled words found in 2.7 to 3.4 Modules/*,
as reported by Serhiy Storchaka and Matthew Barnett.
diff --git a/Modules/_heapqmodule.c b/Modules/_heapqmodule.c
index 64259de..ec1da05 100644
--- a/Modules/_heapqmodule.c
+++ b/Modules/_heapqmodule.c
@@ -139,7 +139,7 @@
         }
     }
 
-    /* The leaf at pos is empty now.  Put newitem there, and and bubble
+    /* The leaf at pos is empty now.  Put newitem there, and bubble
        it up to its final resting place (by sifting its parents down). */
     Py_DECREF(PyList_GET_ITEM(heap, pos));
     PyList_SET_ITEM(heap, pos, newitem);
@@ -478,7 +478,7 @@
         childpos = 2*pos + 1;
     }
 
-    /* The leaf at pos is empty now.  Put newitem there, and and bubble
+    /* The leaf at pos is empty now.  Put newitem there, and bubble
        it up to its final resting place (by sifting its parents down). */
     Py_DECREF(PyList_GET_ITEM(heap, pos));
     PyList_SET_ITEM(heap, pos, newitem);