oe-selftest: devtool: fix error message in _test_recipe_contents()

If a variable is being set in the recipe when we've explicitly passed
None as the value to _test_recipe_contents() indicating that it
shouldn't be set at all, then we should be printing out the variable
name in the assertion message but it seems like I forgot to do a
substitution. Also include the value for informational purposes.

(From OE-Core rev: 0dafcb158003fb13f82c266f607d9967fca321db)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/lib/oeqa/selftest/devtool.py b/meta/lib/oeqa/selftest/devtool.py
index 713f2c5d63..71d205c73f 100644
--- a/meta/lib/oeqa/selftest/devtool.py
+++ b/meta/lib/oeqa/selftest/devtool.py
@@ -44,7 +44,7 @@ class DevtoolBase(oeSelfTest):
                 if var and var in checkvars:
                     needvalue = checkvars.pop(var)
                     if needvalue is None:
-                        self.fail('Variable %s should not appear in recipe')
+                        self.fail('Variable %s should not appear in recipe, but value is being set to "%s"' % (var, value))
                     if isinstance(needvalue, set):
                         if var == 'LICENSE':
                             value = set(value.split(' & '))