diff --git a/scripts/package.sh b/scripts/package.sh
index 99580bc..5b1a89f 100755
--- a/scripts/package.sh
+++ b/scripts/package.sh
@@ -14,7 +14,9 @@ vsce package --baseContentUrl=$(json -f package.json repository.url)/tree
 
 unzip -d $VSIX_FILE_NAME{.d,}
 cd $VSIX_FILE_NAME.d
-MINIFY_XML_OPTIONS='--no-shorten-namespaces --no-remove-unused-namespaces --no-remove-unused-default-namespace'
+MINIFY_XML_OPTIONS='--no-shorten-namespaces
+                    --no-remove-unused-namespaces
+                    --no-remove-unused-default-namespace'
 minify-xml $MINIFY_XML_OPTIONS --output \[Content_Types\].xml{,}
 minify-xml $MINIFY_XML_OPTIONS --output extension.vsixmanifest{,}
 cd extension
@@ -27,7 +29,8 @@ tail -n +9 README.md > _ && mv _ README.md
 tail -n +9 CHANGELOG.md > _ && mv _ CHANGELOG.md
 cd ext
 # Minify Perl scripts.
-if [ -x "$(command -v perltidy)" ]; then
+# You can install perltidy with `cpan Perl::Tidy`
+if [[ -x "$(command -v perltidy)" ]]; then
     perltidy --mangle -dac -b html-preview.pm
     rm html-preview.pm.bak
 fi
diff --git a/scripts/prepare.sh b/scripts/prepare.sh
index 4865b96..14a0429 100755
--- a/scripts/prepare.sh
+++ b/scripts/prepare.sh
@@ -10,7 +10,7 @@
 SRC_PATH=./node_modules/language-texinfo
 DEST_PATH=./out/grammars
 mkdir -p $DEST_PATH
-# Convert TextMate grammar from CSON to JSON, as VSCode cannot recognize CSON ones.
+# Convert TextMate grammar to JSON, as VSCode cannot recognize CSON ones.
 cson2json $SRC_PATH/grammars/texinfo.cson | json5 > $DEST_PATH/texinfo.json
 
 VERSION=$(json -f package.json version)