KT-3008 Fix JS backend tests

compiler/testData/cli/js/jsHelp.out

@@ -7,6 +7,7 @@ where possible options include:
   -meta-info                 Generate metadata
   -kjsm                      Generate kjsm-files (for creating libraries)
   -target <version>          Generate JS files for specific ECMA version (only ECMA 5 is supported)
+  -module-kind               Kind of a module generated by compiler. Supported values are: plain (by default), amd, commonjs, umd.
   -main {call,noCall}        Whether a main function should be called; default 'call' (main function will be auto detected)
   -output-prefix <path>      Path to file which will be added to the beginning of output file
   -output-postfix <path>     Path to file which will be added to the end of output file
@@ -17,5 +18,4 @@ where possible options include:
   -help (-h)                 Print a synopsis of standard options
   -X                         Print a synopsis of advanced options
   -P plugin:<pluginId>:<optionName>=<value>
-                             Pass an option to a plugin
-OK
+                             Pass an option to a plugin