Fixed inline help typos

Fix #55

commands/core/download.go

@@ -35,8 +35,8 @@ func initDownloadCommand() *cobra.Command {
 		Short: "Downloads one or more cores and corresponding tool dependencies.",
 		Long:  "Downloads one or more cores and corresponding tool dependencies.",
 		Example: "" +
-			"  " + commands.AppName + "core download arduino:samd       # to download the latest version of arduino SAMD core.\n" +
-			"  " + commands.AppName + "core download arduino:samd=1.6.9 # for a specific version (in this case 1.6.9).",
+			"  " + commands.AppName + " core download arduino:samd       # to download the latest version of arduino SAMD core.\n" +
+			"  " + commands.AppName + " core download arduino:samd=1.6.9 # for a specific version (in this case 1.6.9).",
 		Args: cobra.MinimumNArgs(1),
 		Run:  runDownloadCommand,
 	}

commands/core/list.go

@@ -31,7 +31,7 @@ func initListCommand() *cobra.Command {
 		Use:     "list",
 		Short:   "Shows the list of installed platforms.",
 		Long:    "Shows the list of installed platforms.",
-		Example: "  " + commands.AppName + "core list",
+		Example: "  " + commands.AppName + " core list",
 		Args:    cobra.NoArgs,
 		Run:     runListCommand,
 	}