Verify gofmt in test.sh, update helpgen for that

Updates helpgen to generate gofmt-compliant code, and updates test.sh to
verify that all code is gofmt-ed.

Author: DirectXMan12

cmd/helpgen/main.go

@@ -134,7 +134,7 @@ func (g Generator) Generate(ctx *genall.GenerationContext) error {
 
 			for _, field := range info.Fields {
 				summary, details := godocToDetails(field.Name, field.Doc)
-				fmt.Fprintf(outContent, "%[1]q: markers.DetailedHelp{\nSummary: %[2]q,\n Details: %[3]q,\n},\n", field.Name, summary, details)
+				fmt.Fprintf(outContent, "%[1]q: {\nSummary: %[2]q,\n Details: %[3]q,\n},\n", field.Name, summary, details)
 			}
 
 			summary, details := godocToDetails(info.Name, info.Doc)

test.sh

@@ -128,6 +128,7 @@ golangci-lint run --disable-all \
     --enable=misspell \
     --enable=gocyclo \
     --enable=gosec \
+    --enable=gofmt \
     --deadline=5m \
     ./pkg/... ./cmd/...