Fix remaining wsl_v5 whitespace findings (refs #61)

Insert the blank line wsl_v5 requires above `defer` and `go`
statements that share no variables with the statement above them.
Applied mechanically via `make lint-fix`; the diff is 60 added blank
lines and nothing else.

cmd/vaultik/main.go

@@ -16,6 +16,7 @@ func main() {
 		if err != nil {
 			panic("could not create CPU profile: " + err.Error())
 		}
+
 		defer func() { _ = f.Close() }()
 
 		err = pprof.StartCPUProfile(f)
@@ -33,6 +34,7 @@ func main() {
 			if err != nil {
 				panic("could not create memory profile: " + err.Error())
 			}
+
 			defer func() { _ = f.Close() }()
 
 			runtime.GC() // get up-to-date statistics