Author: Paul Holden
MDL-81358 calendar: avoid hard-coded English string concatenation.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=a64c272c4bb667c719b328afd8e15c3d3ad28898
http://github.com/moodle/moodle/commit/a64c272c4bb667c719b328afd8e15c3d3ad28898
+ 4.4 en [coursecalendarlink,core_calendar]