Clarify readonly method is also about being 'unwritable'.

frewsxcv · frewsxcv · commit 5a93be48c360 · 2017-08-15T10:11:37.000-04:00
diff --git a/src/libstd/fs.rs b/src/libstd/fs.rs
@@ -916,7 +916,7 @@ impl AsInner<fs_imp::FileAttr> for Metadata {
 }
 
 impl Permissions {
-    /// Returns whether these permissions describe a readonly file.
+    /// Returns whether these permissions describe a readonly (unwritable) file.
     ///
     /// # Examples
     ///

Original file line number	Diff line number	Diff line change
`@@ -916,7 +916,7 @@ impl AsInner<fs_imp::FileAttr> for Metadata {`
`916`	`916`	`}`
`917`	`917`
`918`	`918`	`impl Permissions {`
`919`		`- /// Returns whether these permissions describe a readonly file.`
	`919`	`+ /// Returns whether these permissions describe a readonly (unwritable) file.`
`920`	`920`	`///`
`921`	`921`	`/// # Examples`
`922`	`922`	`///`