busybox: Add `script` utility

Handy since it allows you to wrap utilities, faking interactive
execution and enabling them to properly line buffer output.

Change-ID: I4672e431edc143da6f9018212a17d2cd9d8f6579
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-google/recipes-core/busybox/files/gbmc.cfg b/meta-google/recipes-core/busybox/files/gbmc.cfg
index 51d15d1..e097a92 100644
--- a/meta-google/recipes-core/busybox/files/gbmc.cfg
+++ b/meta-google/recipes-core/busybox/files/gbmc.cfg
@@ -6,6 +6,9 @@
 CONFIG_LSOF=y
 CONFIG_LSUSB=y
 
+# Used for line buffering
+CONFIG_SCRIPT=y
+
 # Used by NC-SId
 CONFIG_FEATURE_IPV6=y
 CONFIG_UDHCPC6=y