Update runtime files
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index d0d9ce5..735cce3 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -299,6 +299,7 @@
 runtime/plugin/vimballPlugin.vim	@cecamp
 runtime/plugin/zipPlugin.vim		@cecamp
 runtime/plugin/manpager.vim		@Konfekt
+runtime/syntax/shared/hgcommitDiff.vim		@vegerot
 runtime/syntax/abaqus.vim		@costerwi
 runtime/syntax/aidl.vim			@dpelle
 runtime/syntax/amiga.vim		@cecamp