[OE-core] [PATCH] wic/engine: Add missing newline

[Richard Purdie]

On some hosts the wic.Wic2.test_wic_cp_ext selftest was failing as files weren't
being copied into the rootfs with "wic cp". This was due to a bug added by:

http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=89d4a8df074598cfb3a76e41db7c45d845afd961

where there should be a second newline added at the end of the expression due
to the difference in the way echo -e and printf behave.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 scripts/lib/wic/engine.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/lib/wic/engine.py b/scripts/lib/wic/engine.py
index ea600d2854e..ab33fa6042e 100644
--- a/scripts/lib/wic/engine.py
+++ b/scripts/lib/wic/engine.py
@@ -338,7 +338,7 @@ class Disk:
     def copy(self, src, pnum, path):
         """Copy partition image into wic image."""
         if self.partitions[pnum].fstype.startswith('ext'):
-            cmd = "printf 'cd {}\nwrite {} {}' | {} -w {}".\
+            cmd = "printf 'cd {}\nwrite {} {}\n' | {} -w {}".\
                       format(path, src, os.path.basename(src),
                              self.debugfs, self._get_part_image(pnum))
         else: # fat
-- 
2.20.1