Changed most vec! invocations to use square braces

Most of the Rust community agrees that the vec! macro is clearer when
called using square brackets [] instead of regular brackets (). Most of
these ocurrences are from before macros allowed using different types of
brackets.

There is one left unchanged in a pretty-print test, as the pretty
printer still wants it to have regular brackets.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstd/rand/mod.rs b/src/libstd/rand/mod.rs
index 69cd37651d5..f48325218fb 100644
--- a/src/libstd/rand/mod.rs
+++ b/src/libstd/rand/mod.rs
@@ -245,7 +245,7 @@ mod tests {
     #[cfg_attr(target_os = "emscripten", ignore)]
     fn test_os_rng_tasks() {
 
-        let mut txs = vec!();
+        let mut txs = vec![];
         for _ in 0..20 {
             let (tx, rx) = channel();
             txs.push(tx);