README: document that bash 4 is required

Signed-off-by: Omar Sandoval <osandov@fb.com>

diff --git a/README.md b/README.md
index 748095b2def046b939319111980edc627835a07e..78a41567416e6c9ed14512c0b912d17f7c731963 100644 (file)
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ filesystem testing framework.
 
 The dependencies are minimal, but make sure you have them installed:
 
-- bash
+- bash 4
 - GNU coreutils
 - GNU awk
 - util-linux