Explicitly whitelist LastInsertId and kWh as exempt from the naming checks.

lint.go

diff --git a/lint.go b/lint.go
index e84f46d..6315eba 100644
--- a/lint.go
+++ b/lint.go
@@ -522,6 +522,14 @@
 
 var allCapsRE = regexp.MustCompile(`^[A-Z0-9_]+$`)
 
+// knownNameExceptions is a set of names that are known to be exempt from naming checks.
+// This is usually because they are constrained by having to match names in the
+// standard library.
+var knownNameExceptions = map[string]bool{
+	"LastInsertId": true, // must match database/sql
+	"kWh":          true,
+}
+
 // lintNames examines all names in the file.
 // It complains if any use underscores or incorrect known initialisms.
 func (f *file) lintNames() {
@@ -534,6 +542,9 @@
 		if id.Name == "_" {
 			return
 		}
+		if knownNameExceptions[id.Name] {
+			return
+		}
 
 		// Handle two common styles from other languages that don't belong in Go.
 		if len(id.Name) >= 5 && allCapsRE.MatchString(id.Name) && strings.Contains(id.Name, "_") {

testdata/names.go

diff --git a/testdata/names.go b/testdata/names.go
index 4e84597..f884fab 100644
--- a/testdata/names.go
+++ b/testdata/names.go
@@ -85,3 +85,7 @@
 
 	return ""
 }
+
+type t struct{}
+
+func (t) LastInsertId() (int64, error) { return 0, nil } // okay because it matches a known style violation