[gold][patch] Change how to specify options for the plugins

[Cary Coutant]

Index: gold/options.h
===================================================================
+  DEFINE_special(plugin_opt, options::TWO_DASHES, '\0',
+                 N_("pass an option to the plugin"), N_("OPTION"));

Capitalize the first word: "Pass an option to the plugin".

With that change, it looks good to me, but Ian will need to OK it.

-cary