catch Errno::ECHILD Exception getting git repo info
catch Errno::ECHILD Exception getting git repo info

For some strange reason running repo.head during tests sometimes generates this
error running the first time: Errno::ECHILD Exception: No child processes

The operation seems to work fine the second time ... ?
Here's an example from the debugger:

  (rdb:1) repo.head
  Errno::ECHILD Exception: No child processes
  (rdb:1) repo.head
  #<Grit::Head "emb-test">

concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse,concord-consortium/rigse