tools: tests: check for egrep presence in the system

egrep is not a standard shell tool so don't expect it to be present by
default on every system. Check its presence before proceeding.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

diff --git a/tools/gpio-tools-test b/tools/gpio-tools-test
index 56d7f7e8b2ae943fae7c7804d3b689903daf2e99..6d10b6569dd45f9d11898a9bbea9481648376e54 100755 (executable)
--- a/tools/gpio-tools-test
+++ b/tools/gpio-tools-test
@@ -38,6 +38,7 @@ check_prog() {
 check_prog bats
 check_prog modprobe
 check_prog timeout
+check_prog egrep
 
 # Check if we're running a kernel at the required version or later
 check_kernel $MIN_KERNEL_VERSION