From 7ab31ffeb0d074ea7c32697667412e08fc4db99d Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Sat, 16 Feb 2019 19:18:04 +0100
Subject: lib.types.filename.check: remove unnecessary ()

---
 lib/types.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/types.nix b/lib/types.nix
index 17c1688f..45c00989 100644
--- a/lib/types.nix
+++ b/lib/types.nix
@@ -539,7 +539,7 @@ rec {
   # POSIX.1‐2013, 3.278 Portable Filename Character Set
   filename = mkOptionType {
     name = "POSIX filename";
-    check = test "([0-9A-Za-z._])[0-9A-Za-z._-]*";
+    check = test "[0-9A-Za-z._][0-9A-Za-z._-]*";
     merge = mergeOneOption;
   };
 
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