[gdk-pixbuf] pixdata: Add "-r" as an alias for "--rle"

[Bastien Nocera <hadess src gnome org>]

commit 2396b4d67751e51a3ca05443af1aa69192ad3869
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Dec 16 15:52:47 2016 +0100

    pixdata: Add "-r" as an alias for "--rle"
    
    https://bugzilla.gnome.org/show_bug.cgi?id=775693

 gdk-pixbuf/gdk-pixbuf-pixdata.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gdk-pixbuf/gdk-pixbuf-pixdata.c b/gdk-pixbuf/gdk-pixbuf-pixdata.c
index f753e99..76c27ed 100644
--- a/gdk-pixbuf/gdk-pixbuf-pixdata.c
+++ b/gdk-pixbuf/gdk-pixbuf-pixdata.c
@@ -115,7 +115,8 @@ parse_args (gint    *argc_p,
 
   for (i = 1; i < argc; i++)
     {
-      if (strcmp ("--rle", argv[i]) == 0)
+      if (strcmp ("-r", argv[i]) == 0 ||
+         strcmp ("--rle", argv[i]) == 0)
        {
          use_rle = TRUE;
          argv[i] = NULL;