Update Git to v2.22.0.vfs.1

Includes a change to the post-indexchanged hook (now the
post-index-change hook).

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>

Author: derrickstolee

GVFS/GVFS.Build/GVFS.props

@@ -3,7 +3,7 @@
 
   <PropertyGroup Label="Parameters">
     <GVFSVersion>0.2.173.2</GVFSVersion>
-    <GitPackageVersion>2.20190522.3</GitPackageVersion>
+    <GitPackageVersion>2.20190610.4</GitPackageVersion>
   </PropertyGroup>
 
   <PropertyGroup Label="DefaultSettings">

GVFS/GVFS.Common/GVFSConstants.cs

@@ -157,7 +157,7 @@ public static class Hooks
                 public const string PostCommandHookName = "post-command";
                 public const string ReadObjectName = "read-object";
                 public const string VirtualFileSystemName = "virtual-filesystem";
-                public const string PostIndexChangedName = "post-indexchanged";
+                public const string PostIndexChangedName = "post-index-change";
                 public static readonly string Root = Path.Combine(DotGit.Root, "hooks");
                 public static readonly string PreCommandPath = Path.Combine(Hooks.Root, PreCommandHookName);
                 public static readonly string PostCommandPath = Path.Combine(Hooks.Root, PostCommandHookName);