Merge pull request #878 from matrix-org/t3chguy/wording-1

change roomsettings wording

src/components/views/rooms/RoomSettings.js

@@ -926,7 +926,7 @@ module.exports = React.createClass({
                         <PowerSelector ref="ban" value={ban_level} controlled={false} disabled={!can_change_levels || current_user_level < ban_level} onChange={this.onPowerLevelsChanged}/>
                     </div>
                     <div className="mx_RoomSettings_powerLevel">
-                        <span className="mx_RoomSettings_powerLevelKey">To redact messages, you must be a </span>
+                        <span className="mx_RoomSettings_powerLevelKey">To redact other users' messages, you must be a </span>
                         <PowerSelector ref="redact" value={redact_level} controlled={false} disabled={!can_change_levels || current_user_level < redact_level} onChange={this.onPowerLevelsChanged}/>
                     </div>