cryptocore, main: add two comments

While reading the code, I had to think about what it
does, so add a comment that explains it.

1 files changed, 2 insertions, 0 deletions

diff --git a/main.go b/main.go
index 483db6f..acaa205 100644
--- a/main.go
+++ b/main.go
@@ -67,6 +67,8 @@ func changePassword(args *argContainer) {
 	newPw := readpassword.Twice(args.extpass)
 	readpassword.CheckTrailingGarbage()
 	confFile.EncryptKey(masterkey, newPw, confFile.ScryptObject.LogN())
+	// Are we resetting the password without knowing the old one using
+	// "-masterkey"?
 	if args.masterkey != "" {
 		bak := args.config + ".bak"
 		err = os.Link(args.config, bak)