Revert r48090 " * Modified wfMsg behaviour to do transform after substituting variabl...

Revert r48090 "	* Modified wfMsg behaviour to do transform after substituting variables * If this works, wfMsg should now work similarly to wfMsgExt with parsemag"
While having the parser functions in the message strings work is a laudable goal, the problem here is that it'll *also* execute parser functions it finds in the replaced parameter strings, which may include, say, comment plaintext talking *about* parser functions.
A better fix for this is probably to expand the message placeholders when the parameters are passed in to the parser functions.