Tiny cleanup (#397)

* use license file from gnu.org

They changed http link to https.

File downloaded from:
https://www.gnu.org/licenses/lgpl-3.0.txt

* invoke bash using /usr/bin/env

* fix shellcheck warnings

* fix spelling

* trim excess whitespace

.clang-tidy

@@ -59,4 +59,3 @@ CheckOptions:
   - key:             modernize-use-nullptr.NullMacros
     value:           'NULL'
 ...
-

LICENSE.txt

@@ -1,7 +1,7 @@
                    GNU LESSER GENERAL PUBLIC LICENSE
                        Version 3, 29 June 2007
 
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
  Everyone is permitted to copy and distribute verbatim copies
  of this license document, but changing it is not allowed.
 

README.md

@@ -53,7 +53,7 @@ CryFS has experimental Windows support since the 0.10 release series. To install
 
 GUI
 ===
-Theres some GUI applications with CryFS support. You usually have to install the GUI **and** also CryFS itself for it to work.
+There are some GUI applications with CryFS support. You usually have to install the GUI **and** also CryFS itself for it to work.
 - [SiriKali](https://mhogomchungu.github.io/sirikali/)
 - [Plasma Vault](https://www.kde.org/announcements/plasma-5.11.0.php) in KDE Plasma >= 5.11
 

archive.sh

@@ -1,10 +1,10 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 TAG=$1
 GPGHOMEDIR=$2
 
-git archive --format=tgz "$1" > cryfs-$1.tar.gz
-gpg --homedir "$GPGHOMEDIR" --armor --detach-sign cryfs-$1.tar.gz
+git archive --format=tgz "$1" > "cryfs-$1.tar.gz"
+gpg --homedir "$GPGHOMEDIR" --armor --detach-sign "cryfs-$1.tar.gz"
 
-git archive --format=tar "$1" | xz -9 > cryfs-$1.tar.xz
-gpg --homedir "$GPGHOMEDIR" --armor --detach-sign cryfs-$1.tar.xz
+git archive --format=tar "$1" | xz -9 > "cryfs-$1.tar.xz"
+gpg --homedir "$GPGHOMEDIR" --armor --detach-sign "cryfs-$1.tar.xz"