JapaneseCalendar: Use Registry.LocalMachine instead of RegistryKey.GetBaseKey(RegistryKey.HKEY_LOCAL_MACHINE) (#5725)

JapaneseCalendar is the only code outside of the Registry code that
calls RegistryKey.GetBaseKey(RegistryKey.HKEY_LOCAL_MACHINE) to get a
RegistryKey instance for the local machine hive. Everywhere else uses
Registry.LocalMachine. Update JapaneseCalendar to match, which also
avoids the unnecessary RegistryKey/SafeRegistryHandle allocations.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mscorlib/src/System/Globalization/JapaneseCalendar.cs b/src/mscorlib/src/System/Globalization/JapaneseCalendar.cs
index 801b2e1664..2984d08ab3 100644
--- a/src/mscorlib/src/System/Globalization/JapaneseCalendar.cs
+++ b/src/mscorlib/src/System/Globalization/JapaneseCalendar.cs
@@ -172,7 +172,7 @@ namespace System.Globalization {
                 PermissionSet permSet = new PermissionSet(PermissionState.None);
                 permSet.AddPermission(new RegistryPermission(RegistryPermissionAccess.Read, c_japaneseErasHivePermissionList));
                 permSet.Assert();
-                RegistryKey key = RegistryKey.GetBaseKey(RegistryKey.HKEY_LOCAL_MACHINE).OpenSubKey(c_japaneseErasHive, false);
+                RegistryKey key = Registry.LocalMachine.OpenSubKey(c_japaneseErasHive, writable: false);
 
                 // Abort if we didn't find anything
                 if (key == null) return null;