test-appliance: add a bash_history file with prepopulated command history

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

test-appliance/files/root/.bash_history

diff --git a/test-appliance/files/root/.bash_history b/test-appliance/files/root/.bash_history
new file mode 100644
index 0000000..4933951
--- /dev/null
+++ b/test-appliance/files/root/.bash_history
@@ -0,0 +1,3 @@
+FSTESTCFG=ext4/4k
+FSTESTSET=generic/001
+./runtests.sh