Enable and appease the prealloc linter

.golangci.yaml

@@ -9,7 +9,6 @@ linters:
     - funlen
     - gochecknoglobals
     - gochecknoinits
-    - prealloc
     - revive
     - staticcheck
     - stylecheck

deps/graph.go

@@ -186,7 +186,8 @@ func (g Graph) Resolve(todo []string) (order []string) {
 
 // Print renders this graph to a "dot" format.
 func (g Graph) Print() {
-	var names []string
+	names := make([]string, 0, len(g))
+
 	for name := range g {
 		names = append(names, name)
 	}

state/map.go

@@ -140,7 +140,7 @@ func (m Map) Exclude(patterns []string) Map {
 		match[k] = v
 	}
 
-	var regexes []*regexp.Regexp
+	regexes := make([]*regexp.Regexp, 0, len(patterns))
 
 	for _, pattern := range patterns {
 		exclude := strings.ReplaceAll(pattern, "*", ".*")

triggers/map.go

@@ -36,8 +36,7 @@ func (tm Map) Merge(tm2 Map) {
 
 // Print renders a Map in a human-readable format.
 func (tm Map) Print(chroot, live bool) {
-	var keys []string
-
+	keys := make([]string, 0, len(tm))
 	max := 0
 
 	for k := range tm {
@@ -71,8 +70,7 @@ func (tm Map) Print(chroot, live bool) {
 // Graph generates a dependency graph.
 func (tm Map) Graph(chroot, live bool) (g deps.Graph) {
 	g = make(deps.Graph)
-
-	var names []string
+	names := make([]string, 0, len(tm))
 
 	for _, t := range tm {
 		if t.Skip != nil {