weston-launch: Fix warning on error() not being available due to removal of header
Commit a1450a8a removed errno header but forgot to remove all error() calls.
Signed-off-by: Marius Vlad marius.vlad@collabora.com
Commit a1450a8a removed errno header but forgot to remove all error() calls.
Signed-off-by: Marius Vlad marius.vlad@collabora.com