internal: case sensitive exclude for github.com/BurntSushi/toml

For golang/go#68357

Change-Id: I1b64b6d288b947d3db4ea6149a7e7c4e7632dc0c
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/654735
kokoro-CI: kokoro <[email protected]>
LUCI-TryBot-Result: Go LUCI <[email protected]>
Reviewed-by: Damien Neil <[email protected]>
Reviewed-by: Nooras Saba‎ <[email protected]>

Author: seankhliao

internal/fetch/known_alternatives.go

@@ -29,6 +29,9 @@ var knownAlternatives = map[string]string{
 	"github.com/johnstairs/azure-sdk-for-go":           "github.com/Azure/azure-sdk-for-go",
 	"github.com/shopify/sarama":                        "github.com/Shopify/sarama",
 	"github.com/ibm/sarama":                            "github.com/IBM/sarama",
+	"github.com/burntsushi/toml":                       "github.com/BurntSushi/toml",
+	"github.com/burntSushi/toml":                       "github.com/BurntSushi/toml",
+	"github.com/Burntsushi/toml":                       "github.com/BurntSushi/toml",
 }
 
 // knownAlternativeFor returns the module that the given module path is an alternative to,

internal/frontend/details.go

@@ -104,5 +104,8 @@ func checkExcluded(ctx context.Context, ds internal.DataSource, fullPath, versio
 // Paths to exclude if they match exactly.
 // These are very rare, so it's simpler to hardcode them rather than use the DB.
 var caseSensitiveExcludedPaths = map[string]bool{
-	"github.com/ibm/sarama": true, // https://go.dev/issue/71342
+	"github.com/ibm/sarama":      true, // https://go.dev/issue/71342
+	"github.com/burntsushi/toml": true, // https://go.dev/issue/68357
+	"github.com/burntSushi/toml": true,
+	"github.com/Burntsushi/toml": true,
 }