Merge pull request #125 from SERVANT14/patch-3

"will refuse the set" vs "will refuse to set"

Author: yyx990803

source/guide/components.md

@@ -262,7 +262,7 @@ The `type` can be one of the following native constructors:
 
 In addition, `type` can also be a custom constructor function and the assertion will be made with an `instanceof` check.
 
-When a prop validation fails, Vue will refuse the set the value on the child component, and throw a warning if using the development build.
+When a prop validation fails, Vue will refuse to set the value on the child component, and throw a warning if using the development build.
 
 ### Inheriting Parent Scope