tools/scripts/fetch: honor envtest version, fix variable name

Author: joelanford

tools/scripts/fetch

@@ -16,7 +16,7 @@ fetch() {
   local os="$(uname -s | awk '{ print tolower($0) }')"
 
   local ver_cmd=""
-  local tool_fetch_cmd=""
+  local fetch_cmd=""
   case "$tool" in
     "golangci-lint")
       ver_cmd="${DEST}/golangci-lint --version 2>/dev/null | cut -d' ' -f4"
@@ -32,7 +32,7 @@ fetch() {
       ;;
     "envtest")
       ver_cmd="cat ${DEST}/.envtest_version 2>/dev/null"
-      fetch_cmd="(test -f ${DEST}/setup-envtest.sh || curl -sSLo ${DEST}/setup-envtest.sh https://raw.githubusercontent.com/kubernetes-sigs/controller-runtime/master/hack/setup-envtest.sh) && (source ${DEST}/setup-envtest.sh; fetch_envtest_tools ${DEST}/../) && echo ${ver} > ${DEST}/.envtest_version"
+      fetch_cmd="(test -f ${DEST}/setup-envtest.sh || curl -sSLo ${DEST}/setup-envtest.sh https://raw.githubusercontent.com/kubernetes-sigs/controller-runtime/v${ver}/hack/setup-envtest.sh) && (source ${DEST}/setup-envtest.sh; fetch_envtest_tools ${DEST}/../) && echo ${ver} > ${DEST}/.envtest_version"
       ;;
     *)
       echo "unknown tool $tool"