mysqldump generated output that set OLD_SQL_MODE twice, to different values
(for triggers), or not at all (for routines) in some cases.
---
Merge blasphemy.mysql.com:/home/tnurnberg/28223/50-28223
into  blasphemy.mysql.com:/home/tnurnberg/28223/51-28223


client/mysqldump.c:
  Bug#28223: mysqldump --compact --routines restores from @OLD_SQL_MODE w/o ever setting it
  
  Only save SQL_MODE in dump_triggers if in --compact mode. Otherwise,
  it's already been saved in write_header(). Likewise for dumpe_routines,
  where it was never saved.
mysql-test/r/mysqldump.result:
  Bug#28223: mysqldump --compact --routines restores from @OLD_SQL_MODE w/o ever setting it
  
  mysqldump output has subtly changed. Adjust test-results. This also shows
  OLD_SQL_MODE is always set exactly once now.
  ---
  manual merge