better docs

1 files changed, 1 insertions, 1 deletions

diff --git a/it.class b/it.class
index 6aa7255..bb3ef83 100644
--- a/it.class
+++ b/it.class
@@ -582,7 +582,7 @@ static function exec(/* $cmd, $values1 = array(), ... */)
  * Construct shell command using it::shell_command, log it, execute it and return exit code.
  * stdout/stderr is forwarded to stdout/stderror of calling script.
  * See ::exec above for usage
- * @return exit code of command.
+ * @return exit code of last command: zero for success, nonzero for failure
  */
 static function system(/* $cmd, $values1 = array(), ... */)
 {