From d50a3b65c0e37ba16442c63f3d64faea30010843 Mon Sep 17 00:00:00 2001
From: oech3 <79379754+oech3@users.noreply.github.com>
Date: Thu, 23 Apr 2026 16:08:30 +0900
Subject: [PATCH] validate.rs: Fix comment

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 src/shadow-core/src/validate.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/shadow-core/src/validate.rs b/src/shadow-core/src/validate.rs
index 0fa93a6..4207ca0 100644
--- a/src/shadow-core/src/validate.rs
+++ b/src/shadow-core/src/validate.rs
@@ -39,7 +39,7 @@ pub fn validate_username(name: &str) -> Result<(), ShadowError> {
     }
 
     let mut chars = name.chars();
-    // Name is guaranteed non-empty by the check above.
+    // Reject empty names by requiring a first character here.
     let Some(first) = chars.next() else {
         return Err(ShadowError::Validation("username must not be empty".into()));
     };