multiglob.diff

diff --git a/index.js b/index.js
index 2dff6bf..e16d6a1 100644
--- a/index.js
+++ b/index.js
@@ -219,7 +219,7 @@ function multiGlob (globs, globOptions) {
       throw new Error('Absolute paths not allowed (`nomount` is enabled): ' + globs[i])
     }
     var matches = glob.sync(globs[i], options)
-    if (matches.length === 0) {
+    if (!options.allowNone && matches.length === 0) {
       throw new Error('Path or pattern "' + globs[i] + '" did not match any files')
     }
     for (var j = 0; j < matches.length; j++) {