Symbol spelling change.
errmsg.c:
  Client error message edits.
errmsg.h:
  Two symbol spelling changes.


include/errmsg.h:
  Two symbol spelling changes.
libmysql/errmsg.c:
  Client error message edits.
libmysql/libmysql.c:
  Symbol spelling change.
sql-common/client.c:
  Symbol spelling change.