[gnome-boxes] Add comment about 'broker' for translators

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 16297f3b762e2825a5f6f37865a82a7aa2041eac
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Mon Mar 5 18:06:44 2012 +0200

    Add comment about 'broker' for translators
    
    https://bugzilla.gnome.org/show_bug.cgi?id=671304

 src/main.vala |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/main.vala b/src/main.vala
index 3f7ffa7..8fc4590 100644
--- a/src/main.vala
+++ b/src/main.vala
@@ -7,6 +7,7 @@ private static string[] uris;
 
 private const OptionEntry[] options = {
     { "version", 0, 0, OptionArg.NONE, ref version, N_("Display version number"), null },
+    // A 'broker' is a virtual-machine manager (could be local or remote). Currently libvirt is the only one supported.
     { "", 0, 0, OptionArg.STRING_ARRAY, ref uris, N_("URI to display, broker or installer media"), null },
     { null }
 };