fix typo

dependency/resolver.go

diff --git a/dependency/resolver.go b/dependency/resolver.go
index 2b919b0..e97ddd6 100644
--- a/dependency/resolver.go
+++ b/dependency/resolver.go
@@ -793,7 +793,7 @@
 	// Why does a Google product get a special case build mode with a local
 	// package?
 	LocAppengine
-	// LocRelative indicates the packge is a relative directory
+	// LocRelative indicates the package is a relative directory
 	LocRelative
 )