[tracker] tracker-info: Describe why we use IRI and not URI for translators

[Martyn James Russell <mr src gnome org>]

commit 430c5b67e95323d1051a3354abb1a74a4fc3cba2
Author: Martyn Russell <martyn lanedo com>
Date:   Fri Sep 19 10:19:06 2014 +0100

    tracker-info: Describe why we use IRI and not URI for translators
    
    https://bugzilla.gnome.org/show_bug.cgi?id=735180

 src/tracker-utils/tracker-info.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/tracker-utils/tracker-info.c b/src/tracker-utils/tracker-info.c
index 4eda511..aad5fd5 100644
--- a/src/tracker-utils/tracker-info.c
+++ b/src/tracker-utils/tracker-info.c
@@ -62,6 +62,12 @@ static GOptionEntry entries[] = {
          NULL,
        },
        { "resource-is-iri", 'i', 0, G_OPTION_ARG_NONE, &resource_is_iri,
+         /* To translators:
+          * IRI (International Resource Identifier) is a generalization
+          * of the URI. While URI supports only ASCI encoding, IRI
+          * fully supports international characters. In practice, UTF-8
+          * is the most popular encoding used for IRI.
+          */
          N_("Instead of looking up a file name, treat the FILE arguments as actual IRIs (e.g. 
<file:///path/to/some/file.txt>)"),
          NULL,
        },