misc/vim: Add rune keyword
According to adding rune type
R=adg, dsymonds
CC=golang-dev
https://golang.org/cl/5319048
diff --git a/misc/vim/syntax/go.vim b/misc/vim/syntax/go.vim
index 7ede9d5..7c17534 100644
--- a/misc/vim/syntax/go.vim
+++ b/misc/vim/syntax/go.vim
@@ -68,7 +68,7 @@
" Predefined types
syn keyword goType chan map bool string
-syn keyword goSignedInts int int8 int16 int32 int64
+syn keyword goSignedInts int int8 int16 int32 int64 rune
syn keyword goUnsignedInts byte uint uint8 uint16 uint32 uint64 uintptr
syn keyword goFloats float32 float64
syn keyword goComplexes complex64 complex128