Lowercase warning message.

Author: graydon

src/rustc/middle/lint.rs

@@ -191,7 +191,7 @@ fn check_item_while_true(cx: ctxt, level: level, it: @ast::item) {
                     ast::expr_lit(@{node: ast::lit_bool(true),_}) {
                             cx.span_lint(
                               level, e.span,
-                              "Denote infinite loops with loop { ... }");
+                              "denote infinite loops with loop { ... }");
                     }
                     _ {}
                 }

src/test/compile-fail/issue-1962.rs

@@ -1,7 +1,7 @@
 // compile-flags: -W err-while-true
 fn main() {
   let mut i = 0;
-  while true  { //! ERROR Denote infinite loops with loop
+  while true  { //! ERROR denote infinite loops with loop
     i += 1;
     if i == 5 { break; }
   }