Author: Helen Foster
MDL-21395 rewording help string
http://git.moodle.org/gw?p=moodle.git;a=commit;h=73ecfcb5ccc3b6bb894b54db10a91cc2b149229d
http://github.com/moodle/moodle/commit/73ecfcb5ccc3b6bb894b54db10a91cc2b149229d
+ 2.0 en [err_invalidhost,portfolio_mahara]
+ 2.0 en [err_invalidhost_help,portfolio_mahara]
+ 2.0 en [err_nomnetauth,portfolio_mahara]
+ 2.0 en [err_nomnetauth_help,portfolio_mahara]
+ 2.0 en [err_nomnethosts_help,portfolio_mahara]
+ 2.0 en [pf_description,portfolio_mahara]