[xfce4-screenshooter] BR libtool as well (should be a dependency of xfce4-dev-tools, see #964474)

[Christoph Wickert]

commit cb1e4ea876f24e13989be43c2fb24c2298706a8d
Author: Christoph Wickert <cwickert at fedoraproject.org>
Date:   Sun May 19 01:42:26 2013 +0200

    BR libtool as well (should be a dependency of xfce4-dev-tools, see #964474)

 xfce4-screenshooter.spec |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/xfce4-screenshooter.spec b/xfce4-screenshooter.spec
index 4a1cf41..6448813 100644
--- a/xfce4-screenshooter.spec
+++ b/xfce4-screenshooter.spec
@@ -38,7 +38,7 @@ BuildRequires:  gettext
 BuildRequires:  intltool
 BuildRequires:  desktop-file-utils
 # FIXME: For patch0 and aarch64 support; remove when no longer necessary
-BuildRequires:  xfce4-dev-tools
+BuildRequires:  xfce4-dev-tools, libtool
 
 %description
 The Xfce Screenshooter utility allows you to capture the entire screen, the