Change name of unit test sub-module to "tests".

Changes the style guidelines regarding unit tests to recommend using a
sub-module named "tests" instead of "test" for unit tests as "test"
might clash with imports of libtest.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstd/io/stdio.rs b/src/libstd/io/stdio.rs
index 42fad701533..a9dab8191fd 100644
--- a/src/libstd/io/stdio.rs
+++ b/src/libstd/io/stdio.rs
@@ -418,7 +418,7 @@ pub fn _print(args: fmt::Arguments) {
 }
 
 #[cfg(test)]
-mod test {
+mod tests {
     use thread;
     use super::*;