update install script comments

install

@@ -1,5 +1,26 @@
 #!/bin/bash
 
+# snap-pac
+# https://github.com/wesbarnett/snap-pac
+# Copyright (C) 2016 James W. Barnett
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Installation script. First argument is the root directory. For use with a
+# PKGBUILD that installs using "./install $pkgdir".
+
 INSTALL_DIR=$1
 install -d $INSTALL_DIR/usr/share/libalpm/hooks
 install -d $INSTALL_DIR/usr/share/libalpm/hooks.bin/snap-pac
@@ -9,4 +30,4 @@ install -D snap-pac-clean $INSTALL_DIR/usr/share/libalpm/hooks.bin/snap-pac/
 install -D 10_snapper-pre.hook $INSTALL_DIR/usr/share/libalpm/hooks/
 install -D 10_snapper-post.hook $INSTALL_DIR/usr/share/libalpm/hooks/
 install -D 20_snap-pac-clean.hook $INSTALL_DIR/usr/share/libalpm/hooks/
-install -D LICENSE "$INSTALL_DIR/usr/share/licenses/${pkgname}/LICENSE"
+install -D LICENSE "$INSTALL_DIR/usr/share/licenses/snap-pac/LICENSE"