[PATCH] scripts: dtc-version: Don't show error messages

[Dragan Simic]

Prevent the error messages produced by which(1), such as the one quoted
below, from being visible in the build outputs.

    which: no dtc in (./scripts/dtc)

This makes the build outputs look a tiny bit cleaner.

Signed-off-by: Dragan Simic <dsimic at manjaro.org>
---
 scripts/dtc-version.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/dtc-version.sh b/scripts/dtc-version.sh
index 53ff868bcdce..6d3d7b68fdfa 100755
--- a/scripts/dtc-version.sh
+++ b/scripts/dtc-version.sh
@@ -15,7 +15,7 @@ if [ ${#dtc} -eq 0 ]; then
 	exit 1
 fi
 
-if ! which $dtc >/dev/null ; then
+if ! which $dtc >/dev/null 2>/dev/null ; then
 	echo "Error: Cannot find dtc: $dtc"
 	exit 1
 fi