Script updates

update.sh

@@ -7,7 +7,6 @@ pushd temp
 
 # Download the latest release jar
 wget --trust-server-names "https://search.maven.org/remote_content?g=org.threeten&a=threetenbp&v=LATEST"
-ls
 
 # Extract its version
 file="$(ls)"
@@ -17,10 +16,12 @@ version="${version%.jar}"
 # Unzip its contents
 unzip "$file"
 
+# Replace embedded TZDB with new one.
 rm ../threetenabp/src/main/assets/org/threeten/bp/TZDB.dat
 mv org/threeten/bp/TZDB.dat ../threetenabp/src/main/assets/org/threeten/bp/
 
 popd
 rm -r temp
 
-sed -i '' -E "s/threetenbp:[^:]+:no-tzdb/threetenbp:${version}:no-tzdb/" build.gradle
+# Bump version in build file.
+sed -i -E "s/threetenbp:[^:]+:no-tzdb/threetenbp:${version}:no-tzdb/" build.gradle