[fixup v2] kunit: use --build_dir=.kunit as default

[Vitor Massaru Iha]

To make KUnit easier to use, and to avoid overwriting object and
.config files, the default KUnit build directory is set to .kunit

Fixed up minor merge conflicts - Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>

Fixed this identation error exchanging spaces for tabs between lines
248 and 252:

tools/testing/kunit/kunit.py run --defconfig

  File "tools/testing/kunit/kunit.py", line 254
    if not linux:
                ^
TabError: inconsistent use of tabs and spaces in indentation

Signed-off-by: Vitor Massaru Iha <vitor@xxxxxxxxxxx>
Reviewed-by: Brendan Higgins <brendanhiggins@xxxxxxxxxx>
Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=205221
---
version after merge on kunit brach:
v1:
 * fix identation (tabs instead of spaces)

v2:
 * fix v1 changelog description: fix identation
   (spaces instead of tabs, lines 248-252);
 * add python error message on commit message;
 * fix Link tag on commit message.
---
 tools/testing/kunit/kunit.py | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py
index b01838b6f5f9..b3490271a103 100755
--- a/tools/testing/kunit/kunit.py
+++ b/tools/testing/kunit/kunit.py
@@ -169,7 +169,7 @@ def add_common_opts(parser):
 	parser.add_argument('--build_dir',
 			    help='As in the make command, it specifies the build '
 			    'directory.',
-			    type=str, default='', metavar='build_dir')
+                            type=str, default='.kunit', metavar='build_dir')
 	parser.add_argument('--make_options',
 			    help='X=Y make option, can be repeated.',
 			    action='append')
@@ -245,12 +245,11 @@ def main(argv, linux=None):
 	cli_args = parser.parse_args(argv)
 
 	if cli_args.subcommand == 'run':
-		if cli_args.build_dir:
-			if not os.path.exists(cli_args.build_dir):
-				os.mkdir(cli_args.build_dir)
-			kunit_kernel.kunitconfig_path = os.path.join(
-				cli_args.build_dir,
-				kunit_kernel.kunitconfig_path)
+		if not os.path.exists(cli_args.build_dir):
+			os.mkdir(cli_args.build_dir)
+		kunit_kernel.kunitconfig_path = os.path.join(
+			cli_args.build_dir,
+			kunit_kernel.kunitconfig_path)
 
 		if not linux:
 			linux = kunit_kernel.LinuxSourceTree()
-- 
2.26.2