lib/stringify/source-map-support.js | 4 2 + 2 - 0 !
test/stringify.js | 4 2 + 2 - 0 !
2 files changed, 4 insertions(+), 4 deletions(-)

 use source-map-js instead of source-map
 source-map >= 0.7 has an async API which is incompatible.
 source-map-js is a synchronous fork of source-map 0.6.