improve the comments

build/common.sh

@@ -565,7 +565,7 @@ function kube::build::run_build_command_ex() {
 }
 
 function kube::build::rsync_probe {
-  # Wait unil rsync is up and running.
+  # Wait until rsync is up and running.
   local tries=20
   while (( tries > 0 )) ; do
     if rsync "rsync://k8s@${1}:${2}/" \

cmd/kubeadm/app/phases/controlplane/manifests.go

@@ -47,7 +47,7 @@ func CreateInitStaticPodManifestFiles(manifestDir, patchesDir string, cfg *kubea
 }
 
 // GetStaticPodSpecs returns all staticPodSpecs actualized to the context of the current configuration
-// NB. this methods holds the information about how kubeadm creates static pod manifests.
+// NB. this method holds the information about how kubeadm creates static pod manifests.
 func GetStaticPodSpecs(cfg *kubeadmapi.ClusterConfiguration, endpoint *kubeadmapi.APIEndpoint) map[string]v1.Pod {
 	// Get the required hostpath mounts
 	mounts := getHostPathVolumesForTheControlPlane(cfg)

cmd/kubeadm/app/util/image/image.go

@@ -21,7 +21,7 @@ import "regexp"
 var (
 	// tagMatcher is the regex used to match a tag.
 	// Basically we presume an image can be made of `[domain][:port][path]<name>[:tag][@sha256:digest]`
-	// We are obvously interested only in the tag, but for the purpose of properly matching it, we also match the digest
+	// We are obviously interested only in the tag, but for the purpose of properly matching it, we also match the digest
 	// (if present). All the parts before the tag we match in a single match everything (but not greedy) group.
 	// All matched sub-groups, except the tag one, get thrown away. Hence, in a result of FindStringSubmatch, if a tag
 	// matches, it's going to be the second returned element (after the full match).