Match indentation of second argument with first argument if the first one on the same line like the opening parenthesis - originally by Steve Losh

gistfile1.diff

--- /Users/hynek/Downloads/python.vim	2012-06-21 15:44:18.000000000 +0200
+++ python.vim	2012-06-21 15:38:52.000000000 +0200
@@ -119,11 +119,7 @@
                 return indent(parlnum) + &shiftwidth
             endif
         else
-            if closing_paren
-                return parcol - 1
-            else
-                return parcol
-            endif
+            return parcol
         endif
     endif

Essentially it gets you:

foobar(bar,
       foo)

Get the original file from http://www.vim.org/scripts/script.php?script_id=974 .