[pitivi] build: add-remote is now called remote-add

[Thibault Saunier <tsaunier src gnome org>]

commit 973902ecc14c19daf3a25dfb262ef5efa913c446
Author: Thibault Saunier <tsaunier gnome org>
Date:   Mon May 23 15:26:22 2016 -0400

    build: add-remote is now called remote-add
    
    In last xdg-app version it was already supported

 build/flatpak/pitivi-flatpak |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/build/flatpak/pitivi-flatpak b/build/flatpak/pitivi-flatpak
index aafccb3..50240f1 100755
--- a/build/flatpak/pitivi-flatpak
+++ b/build/flatpak/pitivi-flatpak
@@ -7,7 +7,7 @@
 # The usual application name
 APPLICATION_NAME=pitivi
 
-# Where to build the XDG_APP
+# Where to build the FLATPAK
 FLATPAK_ENVPATH=${FLATPAK_ENVPATH:-$HOME/$APPLICATION_NAME-flatpak}
 
 # The name of the bundled application (must respect flatpak app application naming convention).
@@ -82,7 +82,7 @@ REPO=$FLATPAK_ENVPATH/flatpak-repos/$APPLICATION_NAME
 
 XDG_APP_INSTALL="$FLATPAK install --user "
 XDG_APP_UPDATE="$FLATPAK update --user "
-XDG_APP_ADD_REMOTE="$FLATPAK add-remote --no-gpg-verify --user "
+XDG_APP_ADD_REMOTE="$FLATPAK remote-add --no-gpg-verify --user "
 
 # Some terminal output color values
 RED='\033[0;31m'