Rollup merge of rust-lang#72452 - Lucretiel:precision-doc, r=dtolnay

JohnTitor · web-flow · commit a32e584e84fc · 2020-05-28T15:55:35.000+09:00
Clarified the documentation for Formatter::precision

Added a note that `precision` is interpreted as max-width when formatting strings
diff --git a/src/libcore/fmt/mod.rs b/src/libcore/fmt/mod.rs
@@ -1618,7 +1618,8 @@ impl<'a> Formatter<'a> {
         self.width
     }
 
-    /// Optionally specified precision for numeric types.
+    /// Optionally specified precision for numeric types. Alternatively, the
+    /// maximum width for string types.
     ///
     /// # Examples
     ///

Original file line number	Diff line number	Diff line change
`@@ -1618,7 +1618,8 @@ impl<'a> Formatter<'a> {`
`1618`	`1618`	`self.width`
`1619`	`1619`	`}`
`1620`	`1620`
`1621`		`- /// Optionally specified precision for numeric types.`
	`1621`	`+ /// Optionally specified precision for numeric types. Alternatively, the`
	`1622`	`+ /// maximum width for string types.`
`1622`	`1623`	`///`
`1623`	`1624`	`/// # Examples`
`1624`	`1625`	`///`