enhance help description for command with arguments

Summary:
there isn't a description to provide a way to run with command with arguments.
this patch modifies description for using sential(--)

Reviewers: JackDanielZ

Reviewed By: JackDanielZ

Differential Revision: https://phab.enlightenment.org/D9165

src/bin/player.c

@@ -1089,7 +1089,7 @@ _my_evas_new(int w EINA_UNUSED, int h EINA_UNUSED)
 
 static const Ecore_Getopt optdesc = {
   "exactness_play",
-  "%prog [options] <-s|-o|-v|-t|-h> command",
+  "%prog [options] <-s|-o|-v|-t|-h> [--] command [arg1 arg2 ...]",
   PACKAGE_VERSION,
   "(C) 2017 Enlightenment",
   "BSD",

src/bin/recorder.c

@@ -351,7 +351,7 @@ _mkdir(const char *dir)
 
 static const Ecore_Getopt optdesc = {
   "exactness_record",
-  "%prog [options] <-v|-t|-h> command",
+  "%prog [options] <-v|-t|-h> [--] command [arg1 arg2 ...]",
   PACKAGE_VERSION,
   "(C) 2017 Enlightenment",
   "BSD",