Fixed error messages

Author: 1c3t3a

clippy_lints/src/from_over_into.rs

@@ -71,9 +71,9 @@ impl LateLintPass<'_> for FromOverInto {
                     cx,
                     FROM_OVER_INTO,
                     item.span,
-                    "An implementation of From is preferred since it gives you Into<..> for free where the reverse isn't true.",
+                    "An implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true.",
                     None,
-                    "consider to implement From instead",
+                    "consider to implement `From` instead",
                 );
             }
         }