Syntax fix.

Author: Peter Amstutz

cwltool/update.py

@@ -426,7 +426,7 @@ def draft4Dev3to1_0dev4(doc, loader, baseuri):
     """Public updater for draft-4.dev3 to v1.0.dev4."""
     return (_draft4Dev3to1_0dev4(doc, loader, baseuri), "v1.0.dev4")
 
-def v1_0dev4to1.0(doc, loader, baseuri):
+def v1_0dev4to1_0(doc, loader, baseuri):
     # type: (Any, Loader, str) -> Tuple[Any, str]
     """Public updater for v1.0.dev4 to v1.0."""
     return (doc, "v1.0")
@@ -446,7 +446,7 @@ def v1_0dev4to1.0(doc, loader, baseuri):
     "draft-4.dev1": draft4Dev1toDev2,
     "draft-4.dev2": draft4Dev2toDev3,
     "draft-4.dev3": draft4Dev3to1_0dev4,
-    "v1.0.dev4": v1_0dev4to1.0,
+    "v1.0.dev4": v1_0dev4to1_0,
     "v1.0": None
 } # type: Dict[unicode, Callable[[Any, Loader, str], Tuple[Any, str]]]