Fix command in git hook

etc/git-hooks/pre-commit-clang-format-hook

@@ -19,7 +19,7 @@ CLANG_FORMAT_VERSION=$(git cat-file blob master:"$VERSIONFILE" | grep -m 1 'CLAN
 # set path to clang-format binary
 for bin in "clang-format-$CLANG_FORMAT_VERSION" "clang-format";
 do
-    CLANG_FORMAT=$(which "$bin" 2> /dev/null)
+    CLANG_FORMAT=$(command -v "$bin")
     [ -n "$CLANG_FORMAT" ] && break
 done