cleanup: resolve nlreturn linter issues

nlreturn linter requires a new line before return
and branch statements except when the return is alone
inside a statement group (such as an if statement) to
increase code clarity. This commit addresses such issues.

Updates: #1586

Signed-off-by: Rakshith R <rar@redhat.com>

internal/util/httpserver.go

@@ -14,6 +14,7 @@ import (
 // ValidateURL validates the url.
 func ValidateURL(c *Config) error {
 	_, err := url.Parse(c.MetricsPath)
+
 	return err
 }