Include command line in error message.

In order to find the process that isn't being cleaned up, it's
necessary to know what the process is.

Bug: 757946
Change-Id: I4c7d8cf139451fdfc194d6aa02d28ad8799dddc8
Reviewed-on: https://chromium-review.googlesource.com/726599
Reviewed-by: Sigurður Ásgeirsson <siggi@chromium.org>
Commit-Queue: Brian White <bcwhite@chromium.org>
Cr-Commit-Position: refs/heads/master@{#512493}

CrOS-Libchrome-Original-Commit: e7f9a9155ea03d25da4e5269c9532fce9d5f77ac
1 file changed
tree: b9037701c2eda8869c0cc2aa619803aad19d1298
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/