Comment 4 for bug 1542786

This regression bug was introduced in patch https://reviews.mahara.org/#/c/3389/, which updated some of the stats lang strings to be properly pluralizable (on the "Has X friends" part of the string).

The problem was that when writing & code-reviewing the patch, we didn't search the code base to make sure that it modified *every* place in the code where the strings were used.