diff --git a/lib/chkname.c b/lib/chkname.c
index 433eb5e6..79fa29c3 100644
--- a/lib/chkname.c
+++ b/lib/chkname.c
@@ -1,11 +1,9 @@
-/*
- * SPDX-FileCopyrightText: 1990 - 1994, Julianne Frances Haugh
- * SPDX-FileCopyrightText: 1996 - 2000, Marek Michałkiewicz
- * SPDX-FileCopyrightText: 2001 - 2005, Tomasz Kłoczko
- * SPDX-FileCopyrightText: 2005 - 2008, Nicolas François
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
+// SPDX-FileCopyrightText: 1990-1994, Julianne Frances Haugh
+// SPDX-FileCopyrightText: 1996-2000, Marek Michałkiewicz
+// SPDX-FileCopyrightText: 2001-2005, Tomasz Kłoczko
+// SPDX-FileCopyrightText: 2005-2008, Nicolas François
+// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
 
 /*
  * is_valid_user_name(), is_valid_group_name() - check the new user/group
@@ -74,7 +72,9 @@ static bool is_valid_name (const char *name)
 	return !numeric;
 }
 
-bool is_valid_user_name (const char *name)
+
+bool
+is_valid_user_name(const char *name)
 {
 	long  maxsize;
 
@@ -82,12 +82,14 @@ bool is_valid_user_name (const char *name)
 	maxsize = sysconf(_SC_LOGIN_NAME_MAX);
 	if (maxsize == -1 && errno != 0)
 		maxsize = LOGIN_NAME_MAX;
-	if (maxsize != -1 && strlen(name) >= (size_t)maxsize)
+
+	if (strlen(name) >= (size_t)maxsize)
 		return false;
 
 	return is_valid_name (name);
 }
 
+
 bool is_valid_group_name (const char *name)
 {
 	/*
@@ -101,4 +103,3 @@ bool is_valid_group_name (const char *name)
 
 	return is_valid_name (name);
 }
-