Add URI as a common initialism.
diff --git a/lint.go b/lint.go
index e22f747..ef562df 100644
--- a/lint.go
+++ b/lint.go
@@ -503,6 +503,7 @@
 	"TTL":   true,
 	"UI":    true,
 	"UID":   true,
+	"URI":   true,
 	"URL":   true,
 	"UTF8":  true,
 	"VM":    true,