some shellcheck fixes

Author: ktoso

Samples/SwiftAndJavaJarSampleLib/ci-validate.sh

@@ -5,7 +5,7 @@ set -x
 
 ./gradlew jar
 
-export SWIFT_VERSION="$(swift -version | awk '/Swift version/ { print $3 }')"
+SWIFT_VERSION="$(swift -version | awk '/Swift version/ { print $3 }')"
 
 # we make sure to build and run with JDK 24 because the runtime needs latest JDK, unlike Gradle which needed 21.
 if [ "$(uname -s)" = 'Darwin' ]

docker/install_swiftly.sh

@@ -18,8 +18,8 @@ echo "Install Swiftly and toolchain for: $(uname -m)"
 
 apt-get install -y curl
 
-curl -O https://download.swift.org/swiftly/linux/swiftly-$(uname -m).tar.gz
-tar zxf swiftly-$(uname -m).tar.gz
+curl -O "https://download.swift.org/swiftly/linux/swiftly-$(uname -m).tar.gz"
+tar zxf "swiftly-$(uname -m).tar.gz"
 ./swiftly init --assume-yes
 . "${SWIFTLY_HOME_DIR:-$HOME/.local/share/swiftly}/env.sh"
 hash -r