Drop config and add package docs, set_exit_status

Makefile

@@ -35,7 +35,7 @@ lint: $(REVIVE)
 	@echo "Checking vet..."
 	@go vet ./... 2>&1 | tee -a lint.log
 	@echo "Checking lint..."
-	@$(REVIVE) -config ./tools/revive.toml ./... 2>&1 | tee -a lint.log
+	@$(REVIVE) -set_exit_status ./... 2>&1 | tee -a lint.log
 	@echo "Checking for unresolved FIXMEs..."
 	@git grep -i fixme | grep -v -e '^vendor/' -e '^Makefile' | tee -a lint.log
 	@[ ! -s lint.log ]

internal/stack/doc.go

@@ -0,0 +1,22 @@
+// Copyright (c) 2017-2023 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package stack is used for parsing stacks from `runtime.Stack`.
+package stack

tools/tools.go

@@ -25,5 +25,5 @@ package tools
 
 import (
 	// Tools we use during development.
-  _ "github.com/mgechev/revive"
+	_ "github.com/mgechev/revive"
 )