When building cfglib, warning (treated as error) C4473: not enough arguments to swscanf_s

[wixbot]

Got this when building with the MSBuld 14.0 and RTM-candidate VC compiler:

"C:\wix4\wix.proj" (default target) (1) ->
"C:\\wix4\src\ext\ext.proj" (default target) (77) ->
"C:\wix4\src\ext\SettingsEngineExtension\settingsengine.proj" (default target) (142) ->
"C:\wix4\src\ext\SettingsEngineExtension\ca\SettingsEngineCa.vcxproj" (default target)(143) ->
"C:\\wix4\src\SettingsEngine\lib\cfglib.vcxproj" (default target) (144) -> (ClCompile target) ->
    product.cpp(49): warning C4473: 'swscanf_s' : not enough arguments passed for format string [C:\\wix4\src\SettingsEngine\lib\cfglib.vcxproj]

Originally opened by heaths

[wixbot]

AssignedTo set to mikegc