[glib] genmarshal: Conform --help output to conventions

[Emmanuele Bassi <ebassi src gnome org>]

commit 1ffad8fed9a48c0ccd893eb47cce18278c73e6cd
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Apr 26 13:41:41 2017 +0100

    genmarshal: Conform --help output to conventions
    
    The convention for arguments taking a value is:
    
      --argument=VALUE
    
    with the `VALUE` in caps.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=781755

 gobject/glib-genmarshal.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gobject/glib-genmarshal.c b/gobject/glib-genmarshal.c
index 2941954..dc56369 100644
--- a/gobject/glib-genmarshal.c
+++ b/gobject/glib-genmarshal.c
@@ -1116,8 +1116,8 @@ print_blurb (FILE    *bout,
       g_fprintf (bout, "Utility Options:\n");
       g_fprintf (bout, "  --header                   Generate C headers\n");
       g_fprintf (bout, "  --body                     Generate C code\n");
-      g_fprintf (bout, "  --prefix=string            Specify marshaller prefix\n");
-      g_fprintf (bout, "  --output=file              Write output into the specified file\n");
+      g_fprintf (bout, "  --prefix=STRING            Specify marshaller prefix\n");
+      g_fprintf (bout, "  --output=FILE              Write output into the specified file\n");
       g_fprintf (bout, "  --skip-source              Skip source location comments\n");
       g_fprintf (bout, "  --stdinc, --nostdinc       Include/use standard marshallers\n");
       g_fprintf (bout, "  --internal                 Mark generated functions as internal\n");