doc: add missing words

tshepang · tshepang · commit 583f638a7339 · 2016-02-11T22:59:34.000+02:00
diff --git a/src/libstd/ascii.rs b/src/libstd/ascii.rs
@@ -45,7 +45,7 @@ pub trait AsciiExt {
     #[stable(feature = "rust1", since = "1.0.0")]
     type Owned;
 
-    /// Checks if within the ASCII range.
+    /// Checks if the value is within the ASCII range.
     ///
     /// # Examples
     ///
