Check if child._started is set before calling startup().   Not sure if this check is necessary but other code does it.   Fixes #12878 !strict, thanks mrnoouts.
Check if child._started is set before calling startup().   Not sure if this check is necessary but other code does it.   Fixes #12878 !strict, thanks mrnoouts.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@24762 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful