Merge pull request #58207 from strigazi/fix-cmp-ver

Automatic merge from submit-queue (batch tested with PRs 58207, 58258). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Use sort -V to compare golang versions

Change hack/lib/golang.sh to compare golang
version properly with "sort -s -t. -k 1,1 -k 2,2n -k 3,3n",
which sorts key by key and not as strings.



**What this PR does / why we need it**:
trivial fix: hack/lib/golang.sh compare versions like strings, 1.10 is greater than 1.9 as a version but not as a string. Use "sort -s -t. -k 1,1 -k 2,2n -k 3,3n" to compare properly. 

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```

hack/lib/golang.sh

@@ -323,7 +323,7 @@ EOF
   go_version=($(go version))
   local minimum_go_version
   minimum_go_version=go1.9.1
-  if [[ "${go_version[2]}" < "${minimum_go_version}" && "${go_version[2]}" != "devel" ]]; then
+  if [[ "${minimum_go_version}" != $(echo -e "${minimum_go_version}\n${go_version[2]}" | sort -s -t. -k 1,1 -k 2,2n -k 3,3n | head -n1) && "${go_version[2]}" != "devel" ]]; then
     kube::log::usage_from_stdin <<EOF
 Detected go version: ${go_version[*]}.
 Kubernetes requires ${minimum_go_version} or greater.