chore: simplify commit-with-llm output formatting

bin/commit-with-llm

@@ -4,7 +4,7 @@ commit-with-llm() {
 
     mkdir -p tmp
     local prompt_file="tmp/llm_prompt"
-    echo -e "\nWrite prompt to $prompt_file."
+    echo "Write prompt to $prompt_file."
     cat << EOF > "$prompt_file"
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