observer_sys_wx.erl: fix grammar
observer_sys_wx.erl: fix grammar

isvilen/otp,dgud/otp,potatosalad/otp,potatosalad/otp,dgud/otp,vinoski/otp,vinoski/otp,g-andrade/otp,g-andrade/otp,vinoski/otp,isvilen/otp,erlang/otp,dumbbell/otp,potatosalad/otp,mikpe/otp,erlang/otp,potatosalad/otp,dgud/otp,potatosalad/otp,erlang/otp,g-andrade/otp,potatosalad/otp,potatosalad/otp,dumbbell/otp,bjorng/otp,bjorng/otp,mikpe/otp,dumbbell/otp,isvilen/otp,dgud/otp,g-andrade/otp,emacsmirror/erlang,bjorng/otp,isvilen/otp,dumbbell/otp,vinoski/otp,emacsmirror/erlang,vinoski/otp,emacsmirror/erlang,vinoski/otp,dumbbell/otp,erlang/otp,mikpe/otp,emacsmirror/erlang,bjorng/otp,bjorng/otp,dgud/otp,dumbbell/otp,vinoski/otp,bjorng/otp,potatosalad/otp,mikpe/otp,vinoski/otp,emacsmirror/erlang,emacsmirror/erlang,mikpe/otp,dumbbell/otp,erlang/otp,emacsmirror/erlang,erlang/otp,bjorng/otp,g-andrade/otp,bjorng/otp,isvilen/otp,emacsmirror/erlang,g-andrade/otp,erlang/otp,isvilen/otp,potatosalad/otp,mikpe/otp,mikpe/otp,bjorng/otp,dgud/otp,isvilen/otp,dgud/otp,erlang/otp,emacsmirror/erlang,erlang/otp,dgud/otp,g-andrade/otp,dgud/otp,bjorng/otp,dumbbell/otp,g-andrade/otp,isvilen/otp,mikpe/otp,isvilen/otp,mikpe/otp,erlang/otp,mikpe/otp,emacsmirror/erlang,g-andrade/otp,dumbbell/otp,potatosalad/otp,isvilen/otp,vinoski/otp,dgud/otp,vinoski/otp,g-andrade/otp,dumbbell/otp