[PATCH] extrausers.bbclass: Suggest to use IMAGE_CLASSES rather than INHERIT

[Peter Kjellerstedt <peter.kjellerstedt@axis.com>]

Since this class is only useful for image recipes, it is better to
suggest adding it via IMAGE_CLASSES instead of INHERIT in the example.

Also make the example a bit more readable by indenting the variable
values.

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
---
 meta/classes/extrausers.bbclass | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/meta/classes/extrausers.bbclass b/meta/classes/extrausers.bbclass
index 7709407b69..32569e97db 100644
--- a/meta/classes/extrausers.bbclass
+++ b/meta/classes/extrausers.bbclass
@@ -1,18 +1,17 @@
-# This bbclass is mainly used for image level user/group configuration.
+# This bbclass is used for image level user/group configuration.
 # Inherit this class if you want to make EXTRA_USERS_PARAMS effective.
 
 # Below is an example showing how to use this functionality.
-# INHERIT += "extrausers"
+# IMAGE_CLASSES += "extrausers"
 # EXTRA_USERS_PARAMS = "\
-# useradd -p '' tester; \
-# groupadd developers; \
-# userdel nobody; \
-# groupdel -g video; \
-# groupmod -g 1020 developers; \
-# usermod -s /bin/sh tester; \
+#     useradd -p '' tester; \
+#     groupadd developers; \
+#     userdel nobody; \
+#     groupdel -g video; \
+#     groupmod -g 1020 developers; \
+#     usermod -s /bin/sh tester; \
 # "
 
-
 inherit useradd_base
 
 PACKAGE_INSTALL_append = " ${@['', 'base-passwd shadow'][bool(d.getVar('EXTRA_USERS_PARAMS'))]}"
-- 
2.12.0