Add --v=4 to e2e bash executions by default

Will allow more debugging output to be available in CLI

hack/e2e.go

@@ -531,9 +531,9 @@ func kubecfgArgs() string {
 // kubectl command (begining with a space).
 func kubectlArgs() string {
 	if *checkVersionSkew {
-		return " --match-server-version"
+		return " --match-server-version --v=4"
 	}
-	return ""
+	return " --v=4"
 }
 
 func bashWrap(cmd string) string {