fix(update): correct description of how changelog is displayed (#9943)

tools/upgrade.sh

@@ -72,7 +72,7 @@ if git pull --rebase --stat origin master; then
     # Save the commit prior to updating
     git config oh-my-zsh.lastVersion "$last_commit"
 
-    # Display changelog with less if available, otherwise just print it to the terminal
+    # Print changelog to the terminal
     if [[ "$1" = --interactive ]]; then
       "$ZSH/tools/changelog.sh" HEAD "$last_commit"
     fi