Fix debug functions

.travis.yml

@@ -30,6 +30,7 @@ install:
 
 script:
   - gox -verbose -os "${GOX_OS}" -tags "release" ./cmd/restic
+  - gox -verbose -os "${GOX_OS}" -tags "debug" ./cmd/restic.debug
   - go run run_tests.go all.cov
   - GOARCH=386 RESTIC_TEST_INTEGRATION=0 go test ./...
   - goveralls -coverprofile=all.cov -service=travis-ci -repotoken "$COVERALLS_TOKEN" || true

cmd/restic/cmd_dump.go

@@ -16,14 +16,14 @@ import (
 )
 
 type CmdDump struct {
-	global *MainOptions
+	global *GlobalOptions
 }
 
 func init() {
 	_, err := parser.AddCommand("dump",
 		"dump data structures",
 		"The dump command dumps data structures from a repository as JSON documents",
-		&CmdDump{global: &mainOpts})
+		&CmdDump{global: &globalOpts})
 	if err != nil {
 		panic(err)
 	}

debug/debug.go

@@ -12,7 +12,6 @@ import (
 	"strconv"
 	"strings"
 	"sync"
-	"syscall"
 )
 
 var opts struct {