Makefile: set -trimpath on build

[ci skip]

Makefile

@@ -33,14 +33,14 @@ govet:
 	$(GOVET) models pkg routes
 
 build: $(GENERATED)
-	go build $(BUILD_FLAGS) -ldflags '$(LDFLAGS)' -tags '$(TAGS)' -o gogs
+	go build $(BUILD_FLAGS) -ldflags '$(LDFLAGS)' -tags '$(TAGS)' -trimpath -o gogs
 
 build-dev: $(GENERATED) govet
-	go build $(BUILD_FLAGS) -tags '$(TAGS)' -o gogs
+	go build $(BUILD_FLAGS) -tags '$(TAGS)' -trimpath -o gogs
 	cp '$(GOPATH)/bin/gogs' .
 
 build-dev-race: $(GENERATED) govet
-	go build $(BUILD_FLAGS) -race -tags '$(TAGS)' -o gogs
+	go build $(BUILD_FLAGS) -race -tags '$(TAGS)' -trimpath -o gogs
 
 pack:
 	rm -rf $(RELEASE_GOGS)