Only allow lts node version

2018-06-10 19:20:52 +02:00 · 2018-06-10 19:20:52 +02:00 · 5f33006c2b
--- a/package_mask.conf
+++ b/package_mask.conf
@ -11,3 +11,5 @@
 #>=media-libs/fontconfig-2.12
 #>=media-libs/freetype-2.6.4

+# incompatible with signal
+>=dev-lang/node-9