fix typo in comment

Author: smdn

src/Smdn.Net.MuninNode/Smdn.Net.MuninNode.csproj

@@ -8,7 +8,7 @@ SPDX-License-Identifier: MIT
     <VersionPrefix>2.1.0</VersionPrefix>
     <VersionSuffix></VersionSuffix>
     <PackageValidationBaselineVersion>2.0.0</PackageValidationBaselineVersion>
-    <RootNamespace/> <!-- empty the root namespace so that the namespace is determined only by the directory name, for code style rule IDE0030 -->
+    <RootNamespace/> <!-- empty the root namespace so that the namespace is determined only by the directory name, for code style rule IDE0130 -->
     <Nullable>enable</Nullable>
     <NoWarn>CS1591;$(NoWarn)</NoWarn> <!-- CS1591: Missing XML comment for publicly visible type or member 'Type_or_Member' -->
   </PropertyGroup>