Notification of string changes

Author: danghieu1407
MDL-77218 Question bank: Add explanatory text for preview option


http://git.moodle.org/gw?p=moodle.git;a=commit;h=c05a29018fb588934e4b1faf5d009ec2a7b15318
http://github.com/moodle/moodle/commit/c05a29018fb588934e4b1faf5d009ec2a7b15318

+ 4.3 en [restartwiththeseoptions,core_question]
+ 4.3 en [theoptionsyouselectonlyaffectthepreview,qbank_previewquestion]