mount: Replace commas in volume name.

Fixes the following test failure:

    cli_test.go:534: Failed to mount "[...]/542399800,foo,bar" on "[...]/542399800,foo,bar.mnt": exit status 19

1 files changed, 2 insertions, 1 deletions

diff --git a/mount.go b/mount.go
index 5bdaa51..03cbc0b 100644
--- a/mount.go
+++ b/mount.go
@@ -366,7 +366,8 @@ func initGoFuse(fs pathfs.FileSystem, args *argContainer) *fuse.Server {
 	// Add a volume name if running osxfuse. Otherwise the Finder will show it as
 	// something like "osxfuse Volume 0 (gocryptfs)".
 	if runtime.GOOS == "darwin" {
-		mOpts.Options = append(mOpts.Options, "volname="+path.Base(args.mountpoint))
+		volname := strings.Replace(path.Base(args.mountpoint), ",", "_", -1)
+		mOpts.Options = append(mOpts.Options, "volname="+volname)
 	}
 	// The kernel enforces read-only operation, we just have to pass "ro".
 	// Reverse mounts are always read-only.