Optimize validation check (#111)

Author: google-labs-jules[bot]

project/app.py

@@ -25,7 +25,7 @@ def main(name: str = "World"):
     """
     if len(name) > 100:
         raise UsageError("Invalid name: maximum length is 100 characters.")
-    if any(not c.isprintable() for c in name):
+    if not name.isprintable():
         raise UsageError("Invalid name: control characters are not allowed.")
 
     secho(f"Hello {name}! 👋", fg="green", bold=True)