Update runtime files
diff --git a/runtime/autoload/dist/ft.vim b/runtime/autoload/dist/ft.vim
index 160cdcf..973d3b0 100644
--- a/runtime/autoload/dist/ft.vim
+++ b/runtime/autoload/dist/ft.vim
@@ -126,7 +126,7 @@
 " This function checks if one of the first ten lines start with a '@'.  In
 " that case it is probably a change file.
 " If the first line starts with # or ! it's probably a ch file.
-" If a line has "main", "include", "//" ir "/*" it's probably ch.
+" If a line has "main", "include", "//" or "/*" it's probably ch.
 " Otherwise CHILL is assumed.
 func dist#ft#FTchange()
   let lnum = 1