API: Use message-per-value for apihelp-query+userinfo-param-prop

API: Use message-per-value for apihelp-query+userinfo-param-prop

Use message-per-value for message
apihelp-query+userinfo-param-prop to allow smaller strings
for translation.
Each prop in a message also will show up a new parameter on the help
page without the adjust of the translation (but than in english instead
of fully skip it).

Change-Id: I7bb36e4fd95e68fe4798e31070b6fa05ac550d38